List of African-American inventors and scientists explained

This list of African-American inventors and scientists documents many of the African Americans who have invented a multitude of items or made discoveries in the course of their lives. These have ranged from practical everyday devices to applications and scientific discoveries in diverse fields, including physics, biology, math, and medicine.

History

African Americans have been the victims of oppression, discrimination and persecution throughout American history, with an impact on African-American innovation according to a 2014 study by economist Lisa D. Cook, which linked violence towards African Americans and lack of legal protections over the period from 1870 to 1940 with lowered innovation.[1] Despite this, many black innovators have been responsible for a large number of major inventions.

Among the earliest was George Washington Carver, whose reputation was based on his research into and promotion of alternative crops to cotton, which aided in nutrition for farm families. He wanted poor farmers to grow alternative crops both as a source of their own food and as a source of other products to improve their way of life. The most popular of his 44 practical bulletins for farmers contained 105 food recipes using peanuts.[2] He also developed and promoted about 100 products made from peanuts that were useful for the house and farm. He received numerous honors for his work, including the Spingarn Medal of the NAACP.

A later renowned scientist was Percy Lavon Julian, a research chemist and a pioneer in the chemical synthesis of medicinal drugs from plants. He was the first to synthesize the natural product physostigmine, and a pioneer in the industrial large-scale chemical synthesis of the human hormones, steroids, progesterone, and testosterone, from plant sterols such as stigmasterol and sitosterol. His work would lay the foundation for the steroid drug industry's production of cortisone, other corticosteroids, and birth control pills.[3]

A contemporary example of a modern-day inventor is Lonnie George Johnson, an engineer. Johnson invented the Super Soaker water gun, which was the top-selling toy in the United States from 1991 to 1992. In 1980 Johnson formed his own law firm and licensed the Super Soaker water gun to Larami Corporation. Two years later, the Super Soaker generated over $200 million in retail sales and became the best selling toy in North America. Larami Corporation was eventually purchased by Hasbro, the second largest toy manufacturer in the world. Over the years, Super Soaker sales have totaled close to one billion dollars. Johnson reinvested a majority of his earnings from the Super Soaker into research and development for his energy technology companies – "It's who I am, it's what I do."[4] As of 2019, Johnson holds over 120 patents, with more pending, and is the author of several publications on spacecraft power systems.[5] [6] [7] https://en.wikipedia.org/w/index.php?title=List_of_African-American_inventors_and_scientists&action=edit&section=1

List

NameYearsOccupationsInventions / accomplishmentsReferences
Adkins, Rodney1958–Electrical engineerFirst African American to serve as a senior vice president at IBM, helped develop IBM ThinkPad
Alcorn, George Edward Jr.1940–Physicist, inventorInvented a method of fabricating an imaging X-ray spectrometer[8] [9]
Alexander, Archie1888–1958Civil engineerResponsible for the construction of many roads and bridges, including the Whitehurst Freeway, the Tidal Basin Bridge, and an extension to the Baltimore-Washington Parkway.
Ammons, VirgieDecember 29, 1908 – July 12, 2000InventorFiled the fireplace throat damper patent on August 6, 1974.[10]
Amos, Harold1918–2003MicrobiologistFirst African-American department chair at Harvard Medical School[11]
Andrews, James J.1930–1998MathematicianPut forth the Andrews–Curtis conjecture in group theory with Morton L. Curtis, still unsolved[12]
Bailey, Leonard C.1825–1918Inventor
    [13]
    Ball, Alice Augusta1892–1916ChemistDeveloped a technique to make chaulmoogra oil injectable and absorbable, for the first effective treatment of Hansen's disease (leprosy)[14]
    Banneker, Benjamin1731–1806Almanac author; surveyor; farmerConstructed wooden clock; astronomer; assisted in the survey of the original boundaries of the District of Columbia; authored a series of almanacs and ephemerides; naturalist: recorded observations on emergences of periodical cicadas and on the behavior of honey bees.[15]
    Banyaga, Augustin1947–MathematicianWork on diffeomorphisms and symplectomorphisms[16]
    Bashen, Janet1957–Inventor, entrepreneur, professional consultantFirst African-American woman to receive a patent for a web-based software invention, LinkLine, an Equal Employment Opportunity case management and tracking software[17]
    Bath, Patricia1942–2019OphthalmologistFirst African-American female physician to receive a patent for a medical invention; inventions relate to cataract surgery and include the Laserphaco Probe, which revolutionized the industry in the 1980s, and an ultrasound technique for treatment[18] [19] [20]
    Beard, Andrew1849–1921Farmer, carpenter, blacksmith, railroad worker, businessman, inventorJanney coupler improvements; invented the car device #594,059 dated November 23, 1897; rotary engine patent #478,271 dated July 5, 1892[21]
    Bell, Earl S.1977–Inventor, entrepreneur, architect, industrial designerInvented chair with sliding skin (2004) and the quantitative display apparatus (2005)[22] [23] [24]
    Benjamin, Miriam1861–1947Inventor, educatorInvented "Gong and Signal Chair for Hotels"; second African-American woman to receive a patent[25]
    Berry, Leonidas1902–1995GastroenterologistGastroscope pioneer[26]
    Bharucha-Reid, Albert T.1927–1985Mathematician, statisticianProbability theory and Markov chain theorist[27]
    Black, Keith1957–NeurosurgeonBrain tumor surgery and research[28] [29]
    Blackwell, David1919–2010Mathematician, statisticianFirst proposed the Blackwell channel model used in coding theory and information theory; one of the eponyms of the Rao–Blackwell theorem, which is a process that significantly improves crude statistical estimators[30]
    Blair, Henry1807–1860InventorSecond black inventor to issue a patent; invented seed planter and cotton planter.[31] [32]
    Boahen, Kwabena1964–BioengineerSilicon retina able to process images in the same manner as a living retina[33] [34]
    Boone, Sarah1832–1905InventorIroning board allowing sleeves of women's garments to be ironed more easily[35] [36] [37]
    Bouchet, Edward1852–1918PhysicistFirst African-American to receive a PhD in any subject; received physics doctorate from Yale University in 1876
    Bowman, James1923–2011PhysicianPathologist and geneticist; Professor Emeritus Pritzker School of Medicine; first tenured African-American professor at the University of Chicago Division of Biological Sciences[38] [39]
    Boykin, Otis1920–1982Inventor, engineerArtificial heart pacemaker control unit[40] [41] [42]
    Brady, St. Elmo1884–1966ChemistPublished three scholarly abstracts in Science; collaborated on a paper published in the Journal of Industrial and Engineering Chemistry[43]
    Brannon, Horace Signor1884–1970PhysicianWorld War I veteran, military physician who served in the 93rd Infantry Division[44] [45]
    Branson, Herman1914–1995Physicist, educatorProtein structure research[46] [47]
    Brooks, Charles1865– ?InventorStreet sweeper truck and a type of paper punch[48] [49] [50]
    Brown, Henry1832– ?InventorInvented fire safe[51]
    Brown, Oscar E.18xx– ?InventorReceived a patent for an improved horseshoe[52]
    Brown, Marie Van Brittan1922–1999InventorInvented the home security system[53]
    Burr, John Albert18xx– ?InventorRotary-blade lawn mower patent[54]
    Cannon, Thomas C.1943–InventorLed a group of engineers who developed the Tactical Optical Fiber Connector (TOFC), the first fiber optic connector deployed under battlefield conditions, and the ST Connector that helped make fiber optic communications affordable.
    Cardozo, William Warrick1905–1962PediatricianSickle cell anemia studies; in October 1937 he published "Immunologic Studies in Sickle Cell Anemia" in the Archives of Internal Medicine; many of the findings are still valid today
    Carson, Ben1951–Pediatric neurosurgeonPediatric neurosurgery at Johns Hopkins University; first surgeon to successfully separate craniopagus twins[55]
    Carruthers, George(1931–2020)AstrophysicistInvented ultraviolet camera/spectrograph, which was used by NASA when it launched Apollo 16 in 1972
    Carver, George Washington1865–1943Botanical researcherDiscovered hundreds of uses for previously useless vegetables and fruits, principally the peanut[56] [57] [58] [59]
    Chandler, Edward Marion Augustus1887–1973Chemist2nd African American to obtain a PhD in chemistry in US and part of the founding faculty of Roosevelt College (now Roosevelt University)[60]
    Chappelle, Charles W.1872–1941Electrician, construction, international businessman, and aviation pioneerDesigned long-distance flight airplane; the only African-American to invent and display the airplane at the 1911 First Industrial Air Show held in conjunction with the Auto Show at Grand Central Palace in Manhattan in New York City; president of the African Union Company, Inc.[61] [62] [63]
    Chappelle, Emmett1925–2019Scientist and researcherValuable contributions to several fields: medicine, biology, food science, and astrochemistry
    Chin, KarenPaleontologistConsidered one of the world's leading experts in coprolites
    Clark, Kenneth B.1917–1983PsychologistFirst Black president of the American Psychological Association[64]
    Clark, Mamie Phipps1914–2005PsychologistConducted 1940s experiments using dolls to study children's attitudes about race
    Crosthwait, David Jr.1898–1976Research engineerHeating, ventilation, and air conditioning; received some 40 US patents relating to HVAC systems
    Curtis, James H. "Nick"1935–Researcher, chemist (electronics/specialty chemicals)Organic ionogen for aluminum electrolytic capacitors, cationic dialdehyde polysaccharides for wet strength paper and others, US Patent Office US Pat #3609467 US Pat #3547423 and others
    Dabiri, John1980–BiophysicistExpert on jellyfish hydrodynamics and designer of a vertical-axis wind farm adapted from schooling fish
    Daly, Marie Maynard1921–2003BiochemistFirst black American woman with a PhD in chemistry
    Chuck DavisDavis, Chuck? -2017Inventor and electrical engineerInventor of the pROSHI neurofeedback device.[65] [66]
    Dean, Mark1957–Computer scientistLed the team that developed the ISA bus, and led the design team responsible for creating the first one-gigahertz computer processor chip[67] [68] [69]
    Drew, Charles1904–1950Medical researcherDeveloped improved techniques for blood storage
    Easley, Annie1933–2011[70] Computer scientistWork at the Lewis Research Center of the National Aeronautics and Space Administration and its predecessor, the National Advisory Committee for Aeronautics[71]
    Ellis, Clarence "Skip"1943–2014Computer scientistFirst African American with a PhD in computer science; software inventor including OfficeTalk at Xerox PARC[72] [73]
    Ezerioha, Bisi1972–Automotive engineerDrag racing engineer and driver
    Ferguson, Lloyd Noel1918–2011Chemist, educatorChemistry doctorate, first received (1943, University of California, Berkeley)[74] [75]
    Fox, Brian J.1959–Computer scientist, programmer, technologistOriginal author of bash, and developer of the first online banking website in the US.[76]
    Fryer, Roland G. Jr.1977–Economist, social scientist, statisticianInequality studies
    Gates, Sylvester James1950–Theoretical physicistWork on supersymmetry, supergravity, and superstring theory[77] [78]
    Gilbert, Juan E.1969–Computer scientistAwarded the first Presidential Endowed Chair at Clemson University in honor of his accomplishments
    Gipson, Mack1931–1995GeologistFirst Black man to receive a Ph.D. in Geology
    Goode, Sarah E.1855–1905InventorFolding "cabinet-bed", forerunner of the Murphy bed; first African-American woman to receive a patent in the United States[79] [80] [81]
    Grant, George F.1846–1910Dentist, professorThe first African-American professor at Harvard, Boston dentist, and inventor of a wooden golf tee.[82]
    Graves, Joseph L.1955–Evolutionary biologist[83] [84] [85]
    Green, LisaLinguistSpecializes in syntax and the study of African American English
    Greenaugh, Kevin1956–2023Nuclear engineer[86]
    Griffin, Bessie Blount1914–2009Physical therapist, inventorAmputee self-feeding device[87] [88]
    Hall, Lloyd1894–1971Chemist
    Harewood, Ken R.Molecular biologistGlaxoSmithKline Distinguished Professor and Director of the North Carolina Central University (NCCU) Julius L. Chambers Biomedical/Biotechnology Research institute and recognized for his work in the fields of cancer biology and cancer drug discovery.[89] [90]
    Harper, Solomon1893–InventorInvented first electrically heated hair roller and 28 other inventions
    Harris, James A.1932–2000RadiochemistCo-discovered Rutherfordium (element 104) and Dubnium (element 105) at Lawrence Livermore Laboratory[91]
    Hawkins, Walter Lincoln1911–1992ScientistInventor at Bell Laboratories[92]
    Hodge, John E.1914–1996Chemist
    Holley, Kerrie1954–Computer scientistIBM's 1st black Distinguished Engineer and 2nd black IBM Fellow. Inventor of several software engineering techniques including system and methods for locating mobile devices using location and presence information[93]
    Jackson, John W. Jr.1953–2007Electrical engineer, inventor, activistCo-inventor of imaging x-ray spectrometer. NASA engineer. United States of America Army Civilian Engineer.
    Jackson, Mary1921–2005Mathematician, Aerospace engineerNASA's first black female engineer
    Jackson, Shirley1946–PhysicistDistinguished and pioneering scientific career, achieving several "firsts" as a woman and as an African-American[94]
    Jackson, William1936–Laser chemist/photochemist, cometary astrochemist at Howard University and UC DavisResearch to unravel the key photochemical sinks of important molecules in planetary atmospheres, in our and other solar systems, around stars, and the interstellar medium.[95]
    Jarvis, Erich1965–NeurobiologistDuke University neuroscience bird songs studies[96] [97] [98]
    Jefferson, Roland1923–2020BotanistFirst African-American botanist to work at the United States National Arboretum; played important role in the preservation of Washington, D.C.'s famous flowering cherry trees.[99]
    Jennings, Thomas L.1791–1856InventorFirst African American to be granted a patent (for a dry cleaning process called dry scouring)[100]
    Johnson, Isaac18xx– ?InventorHeld patent for improvements to the bicycle frame, specifically so it could be taken apart for compact storage[101]
    Johnson, Katherine1918–2020Physicist, mathematicianMade contributions to the United States' aeronautics and space programs with the early application of digital electronic computers at NASA.
    Johnson, Lonnie1949–Mechanical engineer, nuclear engineer, inventorInvented Super Soaker while researching thermal energy transfer engines; worked with NASA; holder of over 80 patents[102] [103] [104]
    Jones, Frederick McKinley1893–1961InventorInvented refrigerated truck systems[105]
    Julian, Percy1899–1975ChemistFirst to synthesize the natural product physostigmine; earned 130 chemical patents; lauded for humanitarian achievements[106] [107] [108] [109]
    Just, Ernest1883–1941Woods Hole Marine Biology Institute biologistProvided basic and initial descriptions of the structure–function–property relationship of the plasma membrane of biological cells[110] [111] [112]
    Kittles, Rick1967–GeneticistWork in tracing the ancestry of African Americans via DNA testing[113] [114]
    Kountz, Samuel L.1930–1981Transplant surgeon, researcherOrgan transplantation pioneer, particularly renal transplant research and surgery; author or co-author of 172 articles in scientific publications[115] [116] [117] [118]
    Land, AdrianMicrobiologistResearcher on Streptococcus pneumoniae and Staphylococcus aureus[119] [120] [121]
    Latimer, Lewis1848–1928Inventor, draftsman, expert witnessWorked as a draftsman for both Alexander Graham Bell and Thomas Edison; invented the more durable filament, which made the incandescent light bulb last long enough to be useful; became a member of Edison's Pioneers and served as an expert witness in many light bulb litigation lawsuits; said to have invented the water closet.[122] [123] [124] [125]
    Lawson, Jerry1940–2011Computer engineerDesigner of Fairchild Channel F, the first programmable ROM cartridge-based video game console[126] [127]
    Lee, Raphael Carl1949–Surgeon, biomedical engineerProfessor at Pritzker School of Medicine; discovered ways to improve injury repair mechanisms of living cells; holds patents related to scar treatment therapies, tissue engineered ligaments, brain trauma therapies, and protective garments[128] [129] [130] [131] [132]
    Lynk, Beebe Steven1872–1948ChemistTeacher at West Tennessee University
    Mahoney, Mary1845–1926NurseFirst African-American to study and work as a professionally trained nurse in the United States[133]
    Martin, Thomas J.1842–1872InventorAwarded a patent in 1872 for improvements to the fire extinguisher[134] [135] [136] [137]
    McBay, Henry1914–1995ChemistHis discoveries allowed chemists around the world to create inexpensive peroxide compounds[138] [139]
    McCoy, Elijah1844–1929InventorInvented the automatic lubricator for steam engines, McCoy learned a great deal of his skills from a mechanical apprenticeship when he was age fifteen.[140] [141]
    McLurkin, James1972–Roboticist[142]
    McNair, Ronald1950–1986Astronaut and PhysicistSpecialized in chemical and high-pressure laser physics
    McWhorter, John1965–LinguistSpecializes in the study of creole language formation
    Mensah, Thomas1950–2024Inventor
    Miles, Alexander1838–1918InventorInvented electric elevator doors that automatically open and close[143]
    Montgomery, Benjamin1819–1877InventorDesigned a steam operated propeller to provide propulsion to boats in shallow water
    Moore, Willie Hobbs1934–1994PhysicistFirst African-American woman to earn a PhD in physics (University of Michigan Ann Arbor 1972) on vibrational analysis of secondary chlorides[144]
    Morgan, Garrett1877–1963InventorInvented an early version of a gas mask called a smoke hood, and created the first traffic light that included a third "warning" position which is standard today. Morgan also developed a chemical that was used in hair products for hair-straightening.[145] [146]
    Nriagu, Jerome1944–GeochemistStudies toxic metals in the environment; supporter of the lead poisoning thesis of the decline of the Roman Empire
    Parker, Alice H.1895–1920InventorFurnace for Central Heating
    Petters, Arlie1964–PhysicistWork on the mathematical physics of gravitational lensing
    Poindexter, Hildrus1901–1987Bacteriologist, epidemiologistWork on the epidemiology of tropical diseases, including malaria
    Quarterman, Lloyd Albert1918–1982Scientist, fluoride chemistManhattan Project, worked with Albert Einstein and Enrico Fermi
    Renfroe, Earl1907–2000Orthodontist[147] [148]
    Rillieux, Norbert1806–1894Engineer, inventorInventor of the multiple-effect evaporator[149]
    Robinson, Larry1957–Environmental chemistInvestigated possible role of arsenic in the death of Zachary Taylor; interim president of Florida A&M University
    Ross, ArchiaTurn of 20th centuryInventorA runner for stoops (1896), bag closure device (1898), a wrinkle-preventing trouser stretcher (1899), a garment-hanger (1903), and a holder for brooms and like articles.[150] [151]
    Russell, Jesse1948–Engineer, inventorWireless communications engineer
    Ruth, William Chester1882–1971Inventor, machinistCombination baler feeder, self-lifting farm elevator[152]
    Sammons, Walter1890–1973InventorPatent for hot comb[153]
    Snyder, Window1976–Computer engineerSecurity engineer at Microsoft, Mozilla, and Apple
    Sowell, Thomas1930–Economist, social scientistEconomist, social theorist and political philosopher[154] [155] [156] [157]
    Steele, Claude1946–Psychologist, social scientistStereotype threat studies
    Stiff, Lee1941–MathematicianPresident of the National Council of Teachers of Mathematics from 2000 to 2002[158]
    Temple, Lewis1800–1854Inventor, blacksmith, abolitionistInventor of the toggling whaling harpoon head[159]
    Thomas, Valerie1943–Data analyst and inventorInvented the illusion transmitter[160]
    Thomas, Vivien1910–1985Surgical technicianBlue baby syndrome treatment in the 1940s[161] [162] [163]
    Turner, Charles Henry1867–1923ZoologistFirst person to prove that insects can hear and can distinguish pitch, that cockroaches can learn by trial and error, and that honeybees can see color; first African-American to receive a PhD from the University of Chicago[164]
    Tyree, G. Bernadette19xx–Program Director, Division of Musculoskeletal Diseases, at National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health[165]
    Tyson, Neil deGrasse1958–AstronomerResearcher and popular educator in astronomy and the sciences[166] [167] [168]
    Valerino, Powtawche1980–EngineerWorked for JPL and NASA at Langley Research Center
    Vaughan, Dorothy1910–2008MathematicianWorked for NACA and NASA at Langley Research Center
    Walker, Arthur B. C. Jr.1936–2001AstronomerDeveloped normal incidence multilayer XUV telescopes to photograph the solar corona[169] [170] [171]
    Walker, C. J.1867–1919InventorCreated black cosmetic products[172]
    Ward, Dawn N.1973–Organic chemistryCreates compounds to treat Hepatitis C[173]
    Washington, Warren M.1936–Atmospheric scientistFormer chair of the National Science Board[174] [175] [176] [177]
    West, James E.1931–Acoustician, inventorCo-developed the foil electret microphone[178] [179] [180]
    White, LisaPaleontologistGeologist and Director of Education and Outreach at the University of California Museum of Paleontology
    Wilkins, J. Ernest Jr.1923–2011Mathematician, engineer, nuclear scientistEntered University of Chicago at age 13; PhD at 19; worked on the Manhattan Project; wrote more than 100 scientific papers; helped recruit minorities into the sciences[181] [182] [183]
    Williams, Daniel1856–1931SurgeonThe first black person on record to have successfully performed pericardium (the sac surrounding the heart) surgery to repair a wound.[184]
    Williams, Marguerite Thomas1895–1991GeologistFirst Black person to receive a Ph.D. in Geology
    Williams, Scott W.1943–Mathematician[185]
    Williams, Walter E.1936–2020Economist, social scientist[186] [187] [188]
    Woods, Granville1856–1910InventorInvented the synchronous multiplex railway telegraph[189]
    Wright, Jane C.1919–2013Cancer research and surgeonNoted for her contributions to chemotherapy and for pioneering the use of the drug methotrexate to treat breast cancer and skin cancer
    Wright, Louis T.1891–1952SurgeonLed team that first used Aureomycin as a treatment on humans[190] [191] [192]
    Yaeger, Ivan1967–InventorInventor of the Yaeger Prosthetic Arm
    Young, Roger Arliner1899–1964ZoologistFirst African-American woman to receive a doctorate degree in zoology[193] [194]

    See also

    External links

    Notes and References

    1. Cook. Lisa D.. 2014-06-01. Violence and economic activity: evidence from African American patents, 1870–1940. Journal of Economic Growth. 19. 2. 221–257. 10.1007/s10887-014-9102-z. 153971489. 1573-7020.
    2. Carver, George Washington. 1916. "How to Grow the Peanut and 105 Ways of Preparing it for Human Consumption", Tuskegee Institute Experimental Station Bulletin 31.
    3. Web site: 2016-06-01. Percy Lavon Julian. 2020-08-03. Science History Institute.
    4. Web site: Interview with CNBC's How I Made my Millions. https://web.archive.org/web/20100924060921/http://www.thelifefiles.com/2010/09/22/meet-lonnie-johnson-he-made-millions-selling-water-guns/. dead. September 24, 2010. The Life Files . April 2, 2018.
    5. Web site: Lonnie George Johnson. 2020-08-03. www.nsbp.org.
    6. Roche, Timothy. Soaking In Success, Time, December 4, 2000.
    7. http://www.inventorsdigest.com/?page_id=168 Products Created by Independent Inventors
    8. Web site: George Edward Alcorn, Jr.. https://archive.today/20130116081600/http://inventors.about.com/library/inventors/blbennett.htm. dead. January 16, 2013. About.com. February 27, 2008.
    9. News: Alcorn exceled in missile research . February 27, 2008 . George Edward Alcorn Jr. attended Occidental College in Los Angeles where he earned eight letters in basketball and football and was an honors student studying physics. He received his bachelor's degree in 1962 and a master's in nuclear physics from Howard University a year later. He attended Occidental College in Los Angeles where he earned eight letters in basketball and football and was an honors student studying physics. He received his bachelor's degree in 1962 and a master's in nuclear physics from Howard University a year later. . . February 20, 2002.
    10. Web site: The Virgie Ammons Fireplace Tool Keeps Heat from Escaping the Chimney.
    11. Web site: Dr. Harold Amos, 84; Mentor to Aspiring Minority Physicians . March 11, 2011 . March 8, 2003 . Los Angeles Times.
    12. .
    13. US. RE11830. Folding Bed. Bailey. Leonard. June 12, 1900.
    14. News: Mendheim. Beverly. Lost and Found: Alice Augusta Ball, an Extraordinary Woman of Hawai'i Nei. May 20, 2013. Northwest Hawaii Times. September 2007. October 6, 2014. https://web.archive.org/web/20141006095537/http://www.northwesthawaiitimes.com/hnsept07.htm. dead.
    15. Book: Bedini, Silvio A.. Silvio Bedini. The Life of Benjamin Banneker: The First African-American Man of Science. 1999. 2nd. Baltimore. Maryland Historical Society. 0-938420-59-3. 894558859. 98022848. September 11, 2019. Internet Archive.
    16. http://www.ias.edu/people/cos/frontpage?page=8 Institute for Advanced Study: A Community of Scholars
    17. https://archive.today/20120709071403/http://inventors.about.com/od/blackinventors/a/bashen.htm Janet Emerson Bashen
    18. Book: Henderson, Susan K.. African-American Inventors III. March 1, 1998. Capstone Press. 978-1-56065-698-2. 12.
    19. Modern Black Inventors. February 25, 2011. 101. February 4, 2002. Jet. 55. 0021-5996. 7.
    20. Book: Lambert, Laura. Inventors and Inventions. September 1, 2007. Marshall Cavendish. 978-0-7614-7763-1. 72.
    21. Web site: Andrew Beard (1849–1921). https://archive.today/20120713044542/http://inventors.about.com/library/inventors/blbeard.htm. dead. July 13, 2012. About.com: Inventors. Bellis. Mary. 2008. February 14, 2008.
    22. https://archive.today/20120709051748/http://inventors.about.com/od/blackinventors/a/black_historyB_2.htm Earl S. Bell
    23. http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=2&f=G&l=50&co1=AND&d=PG01&s1=%22bell+earl+s%22.IN.&OS=IN/%22bell+earl+s%22&RS=IN/%22bell+earl+s%22 Earl S. Bell
    24. http://atlantapost.com/2011/01/10/contemporary-african-americans-inventors/7/ Earl S. Bell
    25. Bellis, Mary. Inventors: Miriam Benjamin, Retrieved from About.com website, February 17, 2011.
    26. Web site: Deaths, University of Chicago Magazine, April 96. magazine.uchicago.edu. April 2, 2018.
    27. Williams, Scott W. (2008). "Mathematicians of the African Diaspora: Albert Turner Bharucha-Reid". The Mathematics Department of the State University of New York at Buffalo. Retrieved November 25, 2012.
    28. Book: Keith Black. Arnold Mann. Brain Surgeon: A Doctor's Inspiring Encounters with Mortality and Miracles. March 25, 2009. Grand Central Life & Style. 978-0-446-58109-7.
    29. Michael D. Lemonick, "The Tumor War", Time, Heroes of Medicine special edition, Fall 1997 (retrieved May 15, 2009).
    30. News: Cattau . Daniel . David Blackwell 'Superstar' . Illinois Alumni . 32–34 . University of Illinois Alumni Association . July 2009.
    31. http://library.thinkquest.org/3337/blair.html Maryland's African American Heritage: Henry Blair
    32. Web site: African American Inventors You Should Know: Henry Blair. https://archive.today/20120709193849/http://inventors.about.com/od/blackinventors/a/Henry_Blair.htm. dead. July 9, 2012. about.com. April 2, 2018.
    33. http://bioengineering.stanford.edu/faculty/boahen.html Kwabena Boahen, PhD, Associate Professor of Bioengineering
    34. http://www-03.ibm.com/press/us/en/pressrelease/26123.wss IBM Seeks to Build the Computer of the Future Based on Insights from the Brain: IBM Awarded DARPA Funding for Cognitive Computing Collaboration
    35. http://www.blackinventor.com/pages/sarah-boone.html Sarah Boone
    36. Web site: Ironing-board. April 2, 2018.
    37. Web site: Sarah Boone, 7th March 1878 ?. The History Woman. April 2, 2018.
    38. Web site: August 23, 2008 . Insider has Obama's ear: What's she telling him? . Terry . Don . Chicago Tribune . July 27, 2008 . dead . https://web.archive.org/web/20080729102408/http://www.chicagotribune.com/news/politics/chi-072708-jarrett,0,1640738.story . July 29, 2008.
    39. Web site: March 15, 2009 . The Bowman Society . Pritzker Pulse . Spring 2005 . Pritzker School of Medicine, University of Chicago . dead . https://web.archive.org/web/20080724084205/http://pritzker.bsd.uchicago.edu/about/news/pritzkerpulse/2005spring/bowman.shtml . July 24, 2008.
    40. [United States Department of Energy|U.S. Department of Energy]
    41. http://wayback.archive-it.org/all/20120427184842/http://inventors.about.com/od/bstartinventors/a/Otis_Boykin.htm Mary Bellis, "Otis Boykin"
    42. "Inventor of Heart Stimulator Honored at Memorial Service." Dallas Morning News, March 18, 1982, p. 88.
    43. http://chemistry.uiuc.edu/bios/brady.html University of Illinois biography
    44. Book: Buckley . Joann H. . Fisher . W. Douglas . 2016 . African American Doctors of World War I: The Lives of 104 Volunteers . Jefferson . McFarland & Company, Inc. . 42–44. 978-1-4766-6315-9.
    45. Web site: Louisville National Medical College . Notable Kentucky African Americans Database . University of Kentucky Libraries . December 12, 2023.
    46. Web site: PNAS Classics – Protein Structure. pnas.org. April 2, 2018.
    47. Einseberg . David . 2003 . The discovery of the alpha-helix and beta-sheet, the principal structural features of proteins . PNAS . 100 . 20 . 11207–11210 . 10.1073/pnas.2034522100 . 12966187 . 208735 . 2003PNAS..10011207E. free.
    48. Street Sweeper . US . 558719 . 1896-04-21.
    49. Punch . US . 507672 . 1893-10-31.
    50. Web site: Helton. Daniel. 2018-03-25. Charles B. Brooks (1865–?) •. 2020-08-03.
    51. Web site: Henry Brown. blackinventor.com. February 6, 2010. https://web.archive.org/web/20110930204933/http://www.blackinventor.com/pages/henrybrown. September 30, 2011. dead. Web site: Henry Brown. blackinventor.com. February 6, 2010. https://web.archive.org/web/20110930204933/http://www.blackinventor.com/pages/henrybrown. September 30, 2011. dead.
    52. Web site: The History of Horseshoes. Inventors – About.com. February 26, 2015. https://archive.today/20130101212606/http://inventors.about.com/library/inventors/blhorseshoe.htm. dead. January 1, 2013.
    53. Web site: 11 African American Inventors Who Changed the World. MSN. https://web.archive.org/web/20180810174456/https://www.msn.com/en-us/lifestyle/smart-living/11-african-american-inventors-who-changed-the-world/ss-BBIMZ3w. August 10, 2018. April 23, 2018.
    54. Web site: Bellis. Mary. John Albert Burr. https://archive.today/20130724033618/http://inventors.about.com/library/inventors/bl_John_Albert_Burr.htm. dead. July 24, 2013. About.com. July 22, 2013.
    55. Web site: Benjamin S. Carson Biography (1951–). faqs.org. April 2, 2018.
    56. Black Leonardo Book. November 24, 1941. Time. https://web.archive.org/web/20070930090502/http://www.time.com/time/magazine/article/0,9171,801330,00.html. dead. September 30, 2007. August 10, 2008.
    57. Harlan, Volume 5, p. 481
    58. http://www.nps.gov/applications/parks/gwca/ppdocuments/Special%20History%20Study.pdf Special History Study
    59. http://www.lib.iastate.edu/spcl/gwc/friends/friends8.html The legacy of George Washington Carver-Friends & Colleagues (Henry Wallace)
    60. Book: University, Laura Mills and Lynn Y. Weiner on behalf of Roosevelt. Roosevelt University. 2014. Arcadia Publishing. 978-1-4671-1247-5.
    61. "A Successful Negro Aviator. Charles Ward Chappelle Invents and Aeroplane Which Attacks Attention." News/Opinion, Savannah Tribune, Page 1, February 11, 1911. Savannah, Georgia
    62. "Mr. C.W. Chappelle: The Man, His Life, His Work And His Aspirations." The Gold Coast Nation. Page 3. June 28, 1919. Ghana.
    63. The Crises: A Record of the Darker Races, "Social Uplift" (page 7), published by the National Association of Colored People (NAACP), May 11, 1911 in New York City.
    64. Bio. True Story, "Kenneth Bancroft Clark Biography." Accessed December 7, 2012. https://web.archive.org/web/20120923083949/http://www.biography.com/people/kenneth-bancroft-clark-9249475.
    65. Web site: September 5, 2017. On my Professional Partnership with Chuck Davis. live. https://web.archive.org/web/20210309191218/https://news.eeginfo.com/on-my-professional-partnership-with-chuck-davis/. eeginfo.com. March 9, 2021.
    66. Web site: Proshi website. live. https://web.archive.org/web/20210228131422/https://roshi.com/about-2/. 2021-02-28.
    67. News: Frank . McCoy . He refined the desktop PC. Now he wants to kill it . December 26, 1999 . . August 12, 2011 . A year later, Dean led a team that built a 1,000-megahertz chip [...] . dead . https://web.archive.org/web/20121020094411/http://www.usnews.com/usnews/culture/articles/000103/archive_034033.htm . October 20, 2012.
    68. Web site: Thirty years later, the personal computer's obsolete, IBM PC designer says . August 12, 2011 . Angel . Jonathan . August 10, 2011 . Linux for Devices . https://archive.today/20120904035652/http://www.linuxfordevices.com/c/a/News/IBM-PC-thirtieth-anniversary/ . September 4, 2012 . dead.
    69. News: Mark . Dean . IBM Leads the Way in the Post-PC Era . August 12, 2011 . A Smarter Planet . August 12, 2011 . I recently traded in my PC for a tablet computer [...].
    70. Web site: Annie Jean Easley's Obituary . The Plain Dealer. April 2, 2018.
    71. Web site: Interview code OHI0026830. nasa.gov. February 11, 2015 . April 2, 2018.
    72. http://www.math.buffalo.edu/mad/computer-science/ellis_clarencea.html Skip Ellis
    73. http://express.howstuffworks.com/ep-ellis.htm Skip Ellis
    74. Web site: Biographical Snapshots of Famous Women and Minority Chemists . Journal of Chemical Education . Lloyd Noel Ferguson . January 17, 2011. .
    75. .
    76. Web site: A Bash with Brian Fox: GNU Software and Entrepreneurship . engineering.UCSB.edu . https://web.archive.org/web/20111119010346/https://engineering.ucsb.edu/events/681 . 2011-11-19.
    77. Web site: UMD PCAST announcement . https://web.archive.org/web/20090727084635/http://www.newsdesk.umd.edu/scitech/print.cfm?articleID=1882 . dead . July 27, 2009 . April 30, 2009 . University of Maryland.
    78. Web site: Superspace. Gates. S. James . M. T. Grisaru . M. Rocek . W. Siegel . 1983. American Institute of Physics.
    79. Web site: 2011 . Sarah Goode . Inventors . The Black Inventor On-Line Museum . November 13, 2011.
    80. Web site: Sarah E. Goode . Inventors . November 13, 2011.
    81. . Full patent image (12 pages)
    82. Book: Vrabel. Jim. When in Boston: A Time Line & Almanac. registration. Northeastern University Press. 2004. 978-1-55553-621-3. 238.
    83. http://www.wolfmanproductions.com/graves.html Dr. Joseph L. Graves, Jr.
    84. Web site: Graves . Joseph L . The Biological Case Against Race . American Outlook . January 1, 2002 . November 15, 2006 . dead . https://web.archive.org/web/20061115040049/http://www.heartland.org/pdf/12721n.pdf . November 15, 2006.
    85. http://www.minority.unc.edu/institute/2006/spkrbios/JosephGraves.cfm Joseph L. Graves, Jr., Ph.D.
    86. Web site: Alumni Honored at Black Engineer Gala News and Current Events, A. James Clark School of Engineering, University of Maryland . School of Engineering, University of Maryland . February 20, 2006 . March 28, 2009.
    87. Web site: Bessie Blount Griffin . csupomona.edu . January 5, 2010 . dead . https://web.archive.org/web/20090301140918/http://www.csupomona.edu/~plin/inventors/blount.html . March 1, 2009.
    88. Web site: Virginia Women in History Past Honorees . Library of Virginia . January 5, 2010.
    89. https://www.proquest.com/abicomplete/docview/398621610/A81D91B50C304107PQ/9 DURHAM -- Julius Chambers has only begun to make his case for North Carolina Central University
    90. Stancill, Jane. Durham, N.C., University Strikes Grant Gold. Knight Ridder Tribune Business News, Oct 16 2002, p. 1. ProQuest. Web. 16 Dec. 2021 .
    91. Web site: James A. Harris . Biographical Snapshots of Famous Women and Minority Chemists . Journal of Chemical Education . May 27, 2011.
    92. McMurray, Emily, ed. Notable Twentieth-Century Scientists. Gale Research, Inc.: Detroit, 1995.
    93. News: Google Patent Search for Kerrie Holley.
    94. Web site: The Remarkable Career of Shirley Ann Jackson. 2021-07-06. MIT Technology Review.
    95. Web site: UC Davis Department of Chemistry. September 12, 2017. chemistry.ucdavis.edu. August 13, 2020.
    96. http://www.dukemagazine.duke.edu/dukemag/issues/070802/depupd.html Singing In The Brain
    97. http://www.dukemednews.duke.edu/news/article.php?id=9272 Duke News
    98. http://www.dukehealth.org/HealthLibrary/News/10333 Erich Jarvis Named Howard Hughes Investigator
    99. Web site: Thiele . Amber . 2006 . Roland Maurice Jefferson Collection . 2022-08-08 . United States National Agricultural Library.
    100. News: Diversity in Innovation: African-Americans' Impact is Forever Reaching – Inventors Digest. March 21, 2018. Inventors Digest. April 23, 2018.
    101. https://patents.google.com/patent/US634823 Bicycle Frame, Patent number: 634823, Filing date: April 6, 1898, Issue date: October 10, 1899
    102. https://web.archive.org/web/20101122072405/http://www.time.com/time/magazine/article/0,9171,998696,00.html Soaking In Success
    103. https://www.theatlantic.com/magazine/archive/2010/11/shooting-for-the-sun/8268/1/ Shooting for the Sun
    104. http://www.rexresearch.com/johnsonjtec/johnson-th.htm Lonni Johnson – Thermo-Electric Generator – articles, patent
    105. Book: Goodman, Rebecca . Barrett J. . Brunsman . This Day in Ohio History . February 28, 2005. Emmis Books. 978-1-57860-191-2. 214.
    106. Web site: A Science Odyssey: People and Discoveries: Percy Julian. pbs.org. April 2, 2018.
    107. Web site: Percy Lavon Julian. June 2016. Science History Institute . March 21, 2018.
    108. Web site: Giants of the Past: Percy Lavon Julian (1899–1975) A Forgotten Pioneer in Soy. United States Department of Agriculture. February 18, 2012.
    109. Web site: Percy Lavon Julian (1899–1975) . Lipid Library . February 18, 2012 . dead . https://web.archive.org/web/20120415001340/http://lipidlibrary.aocs.org/history/Julian/index.htm . April 15, 2012.
    110. Web site: Expansive Vision, Ahead of His Time: Dartmouth celebrates biologist E. E. Just, Class of 1907 . January 28, 2009 . Kelsey . Elizabeth . Dartmouth Life . Dartmouth College.
    111. Book: Manning, Kenneth R.. Black Apollo of science : the life of Ernest Everett Just. 1984. Oxford University Press. New York. 978-0-19-503498-1.
    112. Lee. Edward. Ernest Everett Just. Blacfax. March 2006. 15–16.
    113. Web site: Flesh and blood and DNA. Allen. Arthur. May 12, 2000. Salon. May 13, 2011.
    114. Web site: African American Lives 2, PBS.. pbs.org. April 2, 2018.
    115. Web site: Samuel L. Kountz Diversity Fellowship – General Surgery . Stanford Medicine. April 2, 2018. https://web.archive.org/web/20170613124012/http://med.stanford.edu/gensurg/education/kountz.html. June 13, 2017. dead.
    116. 2537148 . 359824 . 70 . The black surgeon in the twentieth century: a tribute to Samuel L. Kountz, MD . J Natl Med Assoc . 683–84 . Organ . CH Jr . 1978 . 9.
    117. http://www.encyclopediaofarkansas.net/encyclopedia/entry-detail.aspx?entryID=18 – Encyclopedia of Arkansas
    118. News: Dr. Samuel Kountz, 51, Dies; Leader in Transplant Surgery. Lawrence K.. Altman. The New York Times. December 24, 1981. April 2, 2018.
    119. Land . Adrian D. . Hogan . Patrick . Fritz . Stephanie . Levin . Petra Anne . 2015-06-22 . Phenotypic Variation Is Almost Entirely Independent of the Host-Pathogen Relationship in Clinical Isolates of S. aureus . PLOS ONE . en . 10 . 6 . e0129670 . 10.1371/journal.pone.0129670 . 1932-6203 . 4476556 . 26098551 . 2015PLoSO..1029670L . free .
    120. Land . Adrian D. . Winkler . Malcolm E. . August 2011 . The requirement for pneumococcal MreC and MreD is relieved by inactivation of the gene encoding PBP1a . Journal of Bacteriology . 193 . 16 . 4166–4179 . 10.1128/JB.05245-11 . 1098-5530 . 3147673 . 21685290.
    121. Land . Adrian D. . Tsui . Ho-Ching T. . Kocaoglu . Ozden . Vella . Stephen A. . Shaw . Sidney L. . Keen . Susan K. . Sham . Lok-To . Carlson . Erin E. . Winkler . Malcolm E. . Dec 2013 . Requirement of essential Pbp2x and GpsB for septal ring closure in Streptococcus pneumoniae D39: Essential role of GpsB in pneumococcal division . Molecular Microbiology . en . 90 . 5 . 939–955 . 10.1111/mmi.12408 . 4120849 . 24118410.
    122. Book: Fouché, Rayvon . Black Inventors in the Age of Segregation: Granville T. Woods, Lewis H. Latimer, & Shelby J. Davidson. 2003. JHU Press. 978-0-8018-7319-5.
    123. Book: Clarke, John Henrik. Blacks in Science: Ancient and Modern. 1983. Transaction. Piscataway, NJ. 978-0-87855-941-1. 230–233. Ivan Van Sertima.
    124. Web site: Lewis Howard Latimer . June 10, 2007 . National Park Service.
    125. http://www.invent.org/2006Induction/historical2006.asp List of 2006 NIHF inductees
    126. http://classicgames.about.com/od/classicvideogames101/p/FairchildChannelFProfile.htm "Fairchild Channel F – The First ROM Cartridge Console"
    127. News: Gerald A. Lawson, Video Game Pioneer, Dies at 70 . The New York Times . Bruce . Weber . April 13, 2011.
    128. Web site: ((The University of Chicago Medicine)) . About Raphael C. Lee, MD, ScD, DSc (Hon) . The University of Chicago Medicine . 21 March 2022.
    129. Web site: ((American Institute for Medical and Biological Engineering)) . American Institute for Medical and Biological Engineering . Pierre Galletti Award – AIMBE . aimbe.org . 21 March 2022.
    130. Web site: ((Pritzker School of Molecular Engineering)) . Fellows: Raphael Lee . pme.uchicago.edu . The University of Chicago.
    131. Web site: Department of Surgery – Faculty – Raphael Lee, MD . 2008. University of Chicago . dead . https://web.archive.org/web/20120304004237/http://surgicalresearch.bsd.uchicago.edu/faculty/lee/. March 4, 2012.
    132. Web site: ((Patents.Justia.com)) . Raphael C. Lee Inventions, Patents and Patent Applications . Justia Patents Search . 21 March 2022.
    133. Web site: Mahoney. Mary. Mary Eliza. American Experience, PBS. September 3, 2017. March 10, 2017. https://web.archive.org/web/20170310112345/http://www.pbs.org/wgbh/amex/partners/early/e_pioneers_mahoney.html. dead.
    134. Web site: Black History Month Caltrans . 2023-10-01 . dot.ca.gov . en.
    135. US125063A. Improvement in fire-extinguishers. 1872-03-26.
    136. Web site: ionedchandler . 2013-03-26 . Thomas J. Martin Patents Improved Fire Extinguisher On This Day In 1872 . 2023-10-01 . NewsOne . en-US.
    137. Web site: Alumna Publishes First Coloring Book About African-American Inventors Alabama State University . 2023-10-01 . www.alasu.edu.
    138. Brown, Mitchell, [www.lib.lsu.edu/lib/chem/display/henry mcbay.html "Faces of Science: African-Americans in the Sciences,"] 1996.
    139. Kessler, James H., J.S. Kidd, Renee A. Kidd, and Katherine A. Morin. Distinguished African-American Scientists of the 20th Century. Oryx Press: Phoenix, AZ, 1996.
    140. Web site: The not-so-real McCoy . dead . https://web.archive.org/web/20110517111621/http://www33.brinkster.com/iiiii/mccoy/ . May 17, 2011.
    141. Web site: Elijah McCoy, Inventor of the Week . https://web.archive.org/web/20030823125258/http://web.mit.edu/invent/iow/mccoy.html . dead . 2003-08-23 . Lemelson-MIT Program . May 1996. August 18, 2011.
    142. http://invention.smithsonian.org/centerpieces/ilives/lecture02.html Article outlining McLurkin's "Innovative Lives" presentation for the Smithsonian's Lemelson Center
    143. News: On this day in 1887: Alexander Miles patents electric elevator . October 11, 2015. theGrio. April 23, 2018.
    144. Web site: Willie Hobbs Moore, first African American Woman Physicist. Department of Mathematics, University at Buffalo . April 2, 2018.
    145. Web site: Garrett Morgan. Biography. April 23, 2018.
    146. Book: Currie, Stephen. African American Inventors. Lucent Books. 2010. 978-1-4205-0121-6. 64–67.
    147. Bike, William S. "Essays on Earl Renfroe" https://www.amazon.com/Essays-Earl-Renfroe-Man-Firsts/dp/0971045909. UIC College of Dentistry Press, 2001.
    148. Janega, James. "Dr. Earl Renfroe Sr., 93, Pioneering Orthodontist".Chicago Tribune.
    149. http://www.inventions-license.com/view_inventor.php?id=89 Norbert Rillieux, invention of the multiple-effect evaporator
    150. Book: Official Gazette of the United States Patent Office . 1897. U.S. Patent Office . 736.
    151. Web site: Bag closure device. U. S. Patent Office. Google patents. June 7, 1898. May 28, 2018.
    152. Web site: Bomberger . Bruce . Spring 2020 . The Inventor from Ercildoun: William Chester Ruth . 2023-06-02 . Pennsylvania Heritage Magazine.
    153. Web site: Bellis. Mary. Walter Sammons. https://archive.today/20120710152648/http://inventors.about.com/library/inventors/bl_Walter_Sammons.htm. dead. July 10, 2012. May 27, 2011.
    154. Web site: Townhall.com . Townhall.com . April 6, 2010.
    155. Web site: Townhall.com . Townhall.com . April 6, 2010.
    156. Larry D. . Nachman . A Conflict of Visions, by Thomas Sowell . . March 1987.
    157. Web site: Thomas Sowell . Jewish World Review . March 12, 2010 . March 27, 2019 . https://web.archive.org/web/20190327171127/http://jewishworldreview.com/cols/sowell010036.php3 . dead .
    158. http://www.nctm.org/about/content.aspx?id=852 NCTM past presidents
    159. http://www.blackinventor.com/pages/lewis-temple.html Lewis Temple
    160. Web site: A Face Behind Landsat Images: Meet Dr. Valerie L. Thomas « Landsat Science . February 28, 2019 . 10 June 2020.
    161. (1985) Pioneering Research in Surgical Shock and Cardiovascular Surgery: Vivien Thomas and His Work with Alfred Blalock, University of Pennsylvania Press, pp. 9–13. .
    162. Web site: Almost a Miracle . Hopkinsmedicine.org . March 8, 2012 . dead . https://web.archive.org/web/20120302102051/http://www.hopkinsmedicine.org/dome/0301/close_up.cfm . March 2, 2012.
    163. http://www.oah.org/activities/awards/barnouw/winners.html OAH Award Winners
    164. Abramson. Charles I.. 2009. A study in inspiration: Charles Henry Turner (1867–1923) and the investigation of insect behavior. Annual Review of Entomology. 54. 343–59. 0066-4170. 18817509. 10.1146/annurev.ento.54.110807.090502.
    165. Web site: Directory of phone and e-mail for all staff. Branch. Danny Heise, Scientific Information Technology. niams.nih.gov. February 9, 2017.
    166. Web site: Symposium Awards. National Space Symposium. October 25, 2010. April 3, 2012. https://web.archive.org/web/20120403210748/http://www.nationalspacesymposium.org/about/awards/douglas-s-morrow-public-outreach-award. dead.
    167. Web site: Neil deGrasse Tyson . The Great Courses . June 13, 2012 . dead . https://web.archive.org/web/20130320231400/http://www.thegreatcourses.com/tgc/professors/professor_detail.aspx?pid=257 . March 20, 2013.
    168. News: Blum. Matt. Cosmos Will Get a Sequel Hosted by Neil deGrasse Tyson. August 5, 2011. Wired. August 5, 2011.
    169. News: James . Glanz . Arthur Walker, 64, Scientist and Mentor, Dies . . May 9, 2001.
    170. Dawn Levy, Art Walker : 'favorite sun' of solar physics, Stanford Report (October 4, 2000).
    171. Dawn Levy, Solar physicist Art Walker dies at 64; pioneer in X-ray optics, Stanford Report (May 2, 2001).
    172. Web site: Madam C.J. Walker. Biography. April 23, 2018.
    173. Web site: Dr. Dawn Ward – Ingenuity Project. 2020-07-17. Ingenuity Project.
    174. http://www.cisl.ucar.edu/news/02/features/0510.washington.html NCAR's Warren Washington elected chair of National Science Board
    175. http://www.ucar.edu/library/collections/washington/ Warren M. Washington Collection
    176. http://www2.ucar.edu/news/2890/warren-washington-receives-national-medal-science Warren Washington Receives National Science Medal
    177. http://sites.nationalacademies.org/PGA/cwsem/PGA_045077 Warren M. Washington: Senior Scientist & Head of the Climate Change Research Section, Climate and Global Dynamics Division, The National Center for Atmospheric Research
    178. Web site: James B. West of WSE receives Benjamin Franklin Medal : Johns Hopkins University – The Gazette . Gazette.jhu.edu . May 10, 2010 . March 9, 2012.
    179. Web site: Ian Moss: America's Diversity Can Provide Prosperity . HuffPost . April 21, 2010 . March 9, 2012.
    180. Web site: Invent Now | Inventor Profile . Invent.org . February 10, 1931 . March 9, 2012 . dead . https://web.archive.org/web/20120215021322/http://www.invent.org/hall_of_fame/150.html . February 15, 2012.
    181. Web site: Services Update. https://web.archive.org/web/20080707013552/http://www.ieee.org/web/aboutus/history_center/biography/wilkins.html. dead. July 7, 2008. IEEE. April 2, 2018.
    182. Web site: University of Chicago to commemorate accomplishments of mathematics alumnus J. Ernest Wilkins Jr.. www-news.uchicago.edu. April 2, 2018.
    183. Zerbonia, Ralph G. (contrib. by Alic, Margaret) (2005) Contemporary Black Biography, Gale Research Inc, 2005, Vol.49 (Original from the University of Michigan), Digitized September 17, 2008,,, (biography viewable via Answers.com);
    184. Beatty. William K.. 1971-08-01. Daniel Hale Williams: Innovative Surgeon, Educator, and Hospital Administrator. Chest. 60. 2. 175–182. 10.1378/chest.60.2.175. 0012-3692. 4937039.
    185. Web site: Scott W.Williams Mathematical Association of America. 2020-08-03. www.maa.org.
    186. Web site: Happy Birthday Walter Williams . Cato at Liberty . March 31, 2011.
    187. Web site: Capitalism and the Common Man . Williams . Walter . August 25, 1997 . March 20, 2013.
    188. Web site: The Pursuit of Happiness – Economics for the Citizen . Walter . Williams . The Freeman . December 6, 2010 . https://web.archive.org/web/20101124002820/http://www.thefreemanonline.org/columns/the-pursuit-of-happiness-economics-for-the-citizen/ . November 24, 2010 . dead.
    189. Bellis, Mary. Granville T. Woods, 1856–1910.
    190. https://books.google.com/books?id=EFgB5O1OMrMC&pg=PA464 Kwame Anthony Appiah, Henry Louis Gates – Africana: Civil Rights: An A-to-Z Reference of the Movement that Changed America
    191. Web site: Kenyon College . Northbysouth.kenyon.edu . February 1, 2012.
    192. Medicine: Negro Fellow . https://web.archive.org/web/20101125060354/http://www.time.com/time/magazine/article/0,9171,882266,00.html . dead . November 25, 2010 . Time . October 29, 1934 . February 1, 2012.
    193. Book: Merry . Maisel . Laura . Smart . amp . http://www.sdsc.edu/ScienceWomen/young.html . Lifelong Struggle of a Zoologist . Women in Science: A selection of sixteen significant contributors . The San Diego Supercomputer Center . 1997.
    194. Young . R.A.. 1924. On the Excretory Apparatus in Paramecium. Science. 60. 1550. 244. 10.1126/science.60.1550.244. 17814573. 1649643. 1924Sci....60..244Y.