William F. Sullivan (March 12, 1864 – September 27, 1911) was a

professional baseball Professional baseball is organized baseball in which players are selected for their talents and are paid to play for a specific team or club system. It is played in baseball league, leagues and associated farm teams throughout the world. Mod ...

player. He appeared in one game in

Major League Baseball Major League Baseball (MLB) is a professional baseball organization and the oldest major professional sports league in the world. MLB is composed of 30 total teams, divided equally between the National League (NL) and the American League (AL), ...

for the

St. Louis Maroons The St. Louis Maroons were a professional baseball club based in St. Louis, Missouri, from 1884–1886. The club, established by Henry Lucas, were the one near-major league quality entry in the Union Association, a league that lasted only one ...

of the

Union Association The Union Association was a league in Major League Baseball which lasted for just the 1884 season. St. Louis won the pennant and joined the National League the following season. Seven of the twelve teams who were in the Association at some poi ...

in 1884.

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Major League Baseball pitchers St. Louis Maroons players Baseball players from St. Louis 19th-century baseball players 1864 births 1911 deaths Major League Baseball players with one career hit {{US-baseball-pitcher-1860s-stub