| Isaac Deloss Barnum | |
| Birth Date: | 1 November 1825 |
| Occupation: | Photographer |
| Spouse: | Harriet Jane Waters |
Deloss Barnum (1825 - 1873) was a photographer in Boston, Massachusetts and New York, in the mid-19th century.
He lived and worked on his family's farm in Otisco, New York until at least 1850.
Around 1857 he kept a daguerreotype studio on Winter Street in Boston; by 1858 he had moved to Commercial Street.[1] In 1856-1860 he lived in Roxbury.[2] He participated in the 1860 exhibition of the Massachusetts Charitable Mechanic Association.[3] He moved back to New York by 1865 and was a farmer and photographer in Cortland. He died there at the age of 47 on October 7, 1873.[4]
During his career he was referred to by several variant names: D. Barnum; Deblois Barnum;[5] Delos Barnum;[6] DeLos Barnum;[7] and Deloss Barnum.[8]