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Bill Bonness
Pitcher
Born: (1923-12-15)December 15, 1923
Cleveland, Ohio
Died: December 3, 1977(1977-12-03) (aged 53)
Cleveland, Ohio
Batted: Right
Threw: Left
MLB debut
September 26, 1944, for the Cleveland Indians
Last MLB appearance
September 29, 1944, for the Cleveland Indians
Teams

William John Bonness (December 15, 1923 – December 3, 1977), nicknamed "Lefty", was a Major League Baseball pitcher who played for one season. He played for the Cleveland Indians from September 26, 1944, to September 29, 1944.