Alfred S. "Al" Mannassau (1866 - October 13, 1933) was a professional baseball umpire

Umpire (baseball)

In baseball, the umpire is the person charged with officiating the game, including beginning and ending the game, enforcing the rules of the game and the grounds, making judgment calls on plays, and handling the disciplinary actions. The term is often shortened to the colloquial form ump...

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Mannassau umpired in three Major Leagues

Major League Baseball

Major League Baseball is the highest level of professional baseball in the United States and Canada, consisting of teams that play in the National League and the American League...

 in his life. First, he umpired in the National League

National League

The National League of Professional Baseball Clubs, known simply as the National League , is the older of two leagues constituting Major League Baseball, and the world's oldest extant professional team sports league. Founded on February 2, 1876, to replace the National Association of Professional...

 in , working 92 games. Mannassau then umpired 96 American League

American League

The American League of Professional Baseball Clubs, or simply the American League , is one of two leagues that make up Major League Baseball in the United States and Canada. It developed from the Western League, a minor league based in the Great Lakes states, which eventually aspired to major...

 games in . He returned to baseball in , and umpired in 109 Federal League

Federal League

The Federal League of Base Ball Clubs, known simply as the Federal League, was an American professional baseball league that operated as a "third major league", in competition with the established National and American Leagues, from to...

games. In total, Mannassau umpired in 297 Major League games, in three different leagues, in three different seasons.