Buck O'Neil was the first African American coach in Major League Baseball. Before that he played first base and coached for the Kansas City Monarchs of the Negro Leagues. He was an incredible man and the best ambassador baseball ever had.
John Jordan "Buck" O'Neil (November 13, 1911 – October 6, 2006) was a 1st baseman and manager in the Negro American League, mostly with the Kansas City Monarchs. After his playing days, he worked as a scout, and became the first African American coach in Major League Baseball with the Chicago Cubs. He later played a major role in establishing the Negro Leagues Baseball Museum in Kansas City, Missouri.
Leroy Robert "Satchel" Paige (July 7, 1906 – June 8, 1982) was an American baseball player whose pitching in the Negro leagues and in Major League Baseball (MLB) made him a legend in his own lifetime. He was elected to the Baseball Hall of Fame in 1971, the first player to be inducted based upon his play in the Negro leagues.
Joseph Jefferson Jackson - Better known as Shoeless Joe Jackson. A great player who Babe Ruth is said to have modeled himself on, banned from the game in 1920 following the infamous Black Sox Scandal and ineligible under MLB to enter Baseball Hall of Fame. Little kid supposedly said to Shoeless Joe, on his way out of testifying before the Grand Jury "Say it ain't so Joe." Ray Liotta played character based on Shoeless Joe Jackson in "Field of Dreams".