John Kirby (December 31, 1908 – June 14, 1952), was an American jazz double-bassist, who also played trombone and tuba. In addition to sideman work (prominently with Benny Goodman), Kirby is remembered for leading a successful chamber jazz sextet in the late 1930s and early 1940s, which scored several hit songs including “Loch Lomond” and the debut recording of “Undecided“, a jazz standard. He is perhaps the first musician in the chamber jazz genre.

Kirby was born John Kirk in Winchester, Virginia, United States, on 31 December 1908. His mother, Dolly Kirk (died October 1925) gave him up for adoption in 1908 and he was raised by Reverend Washington Johnson and his wife, Nancy, at 442 North Kent Street in Winchester.^[3] (Kirby is listed as a household member in the 1920 United States Federal Census, but not in the 1910 census.) Kirby was a student at the Winchester Colored School, renamed Douglass School in 1916. He took piano lessons from Nancy and valve trombone lessons around 1917 under the guidance of Professor Powell Gibson, the principal of Douglass School, as well as a math, drama, and music teacher.