John "Buck" O’Neil was a first baseman and a manager in the Negro Leagues for 18 years (1937-55). Later in 1962 O’Neil became the first black Major League coach when he was hired as coach of the Chicago Cubs. He coached Hall of Famers like Lou Brock, Ernie Banks, and Billy Williams. O’Neil was the star of two Negro League World Series and he even won a Negro National League batting title! While he was manager of the Kansas City Monarchs, he helped over 36 black players get into Major League Baseball.
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