Peter James O'Brien (June 16, 1867 – June 30, 1937) was a

Major League Baseball Major League Baseball (MLB) is a professional baseball league composed of 30 teams, divided equally between the National League (baseball), National League (NL) and the American League (AL), with 29 in the United States and 1 in Canada. MLB i ...

player. He played in one game for the

Washington Nationals The Washington Nationals are an American professional baseball team based in Washington, D.C. The Nationals compete in Major League Baseball (MLB) as a member club of the National League (NL) East Division. They play their home games at Na ...

in 1887 and 27 games for the Chicago Colts in 1890.

Sources

Retrosheet page for Pete O'Brien
1867 births 1937 deaths 19th-century baseball players 19th-century American sportsmen Baseball players from Chicago Chicago Colts players Major League Baseball second basemen St. Paul Apostles players Washington Nationals (1886–1889) players Chicago Whitings players {{baseball-second-baseman-stub