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.

John 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 and he was raised at 442 North Kent Street by Reverend Washington Johnson and his wife, Nancy. Kirby was a student at the Winchester Colored School (renamed Douglass School in 1916) and started trombone lessons around 1917 under the guidance of Professor Powell Gibson (principal, math, drama and music teacher). Kirby (after success in New York), stated that Bach‘s work fascinated him as a child and that he learned to play music just as it was written.