Bill McWilliams debuted on July 8, 1931, playing for the at ; he played his final game on July 11, 1931, playing for the at .
Larry McWilliams debuted on July 17, 1978, playing for the Atlanta Braves at Atlanta-Fulton County Stadium; he played his final game on May 12, 1990, playing for the Kansas City Royals at Royals Stadium.
The oldest player is Taj McWilliams-Franklin playing for NY Liberty.
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.