Bill Mountjoy debuted on September 29, 1883, playing for the Cincinnati Red Stockings at Bank Street Grounds; he played his final game on August 18, 1885, playing for the Baltimore Orioles at Oriole Park.
Bill Mountjoy played in 6 games at pitcher for the Baltimore Orioles in 1885, starting in none of them. He made one putout, had 12 assists, and committed 2 errors, equivalent to .333 errors per game (estimate based on total games played in). He had one double play.
Bill Mountjoy played in 2 games at outfield for the Cincinnati Red Stockings in 1884, starting in none of them. He made 2 putouts, had one assist, and committed no errors, equivalent to 0 errors per game (estimate based on total games played in). He had one double play.
Bill Abernathie debuted on September 27, 1952 and played his final game on September 27, 1952.
Bill Abstein debuted on September 25, 1906 and played his final game on June 2, 1910.
Bill Ahearn debuted on June 19, 1880 and played his final game on June 19, 1880.
Bill Akers debuted on September 8, 1929 and played his final game on July 27, 1932.
Bill Allison debuted on May 21, 1872 and played his final game on July 4, 1872.
Bill Almon debuted on September 2, 1974 and played his final game on June 14, 1988.
Bill Anderson debuted on September 10, 1925 and played his final game on September 17, 1925.
Bill Andrus debuted on September 19, 1931 and played his final game on May 11, 1937.
Bill Annis debuted on May 1, 1884 and played his final game on August 8, 1884.
Bill Antonello debuted on April 30, 1953 and played his final game on September 27, 1953.