Born: August 8, 1922|
Died: September 21, 1985 63) (aged|
|1942, for the Jacksonville Red Caps|
|1950, for the Cleveland Buckeyes|
|Career highlights and awards|
George Leo "Jeff" Jefferson (August 8, 1922 – September 21, 1985) was an American baseball pitcher in the Negro Leagues. He played with the Jacksonville Red Caps in 1942 and 1943 and the Cleveland Buckeyes from 1944 to 1950. His brother, Bill Jefferson, also played negro league baseball.
- Riley, James A. (1994). The Biographical Encyclopedia of the Negro Baseball Leagues. New York: Carroll & Graf. ISBN 0-7867-0959-6.
- Negro league baseball statistics and player information from Baseball-Reference (Negro leagues)