Frank MacKey should not be confused with Frank McKee.
Frank Joseph MacKey (March 20, 1852 in Gilboa, New York – February 24, 1927 in Minneapolis, Minnesota) was an American polo player in the 1900 Summer Olympics. He was part of the Foxhunters Hurlingham polo team which won the gold medal.[1] He also was a businessman, founding HSBC Finance in 1878. In 1927, he committed suicide by shooting himself while living with a terminal illness.