Harry Sweeney debuted on October 1, 1944, playing for the Pittsburgh Pirates at Forbes Field; he played his final game on October 1, 1944, playing for the Pittsburgh Pirates at Forbes Field.
Bill Sweeney debuted on June 27, 1882, playing for the Philadelphia Athletics at Oakdale Park; he played his final game on October 14, 1884, playing for the Baltimore Monumentals at .
Jerry Sweeney debuted on August 22, 1884, playing for the Kansas City Cowboys at ; he played his final game on October 16, 1884, playing for the Kansas City Cowboys at .
Brian Sweeney debuted on August 16, 2003, playing for the Seattle Mariners at Safeco Field; he played his final game on October 1, 2010, playing for the Seattle Mariners at Safeco Field.
Buck Sweeney debuted on September 28, 1914, playing for the Philadelphia Athletics at Shibe Park; he played his final game on September 28, 1914, playing for the Philadelphia Athletics at Shibe Park.
Harry Ables debuted on September 4, 1905 and played his final game on May 5, 1911.
Harry Agganis debuted on April 13, 1954 and played his final game on June 2, 1955.
Harry Anderson debuted on April 18, 1957 and played his final game on May 5, 1961.
Harry Armbruster debuted on April 30, 1906 and played his final game on October 3, 1906.
Harry Arndt debuted on July 2, 1902 and played his final game on May 25, 1907.
Harry Arundel debuted on July 19, 1875 and played his final game on October 10, 1884.
Harry Baldwin debuted on May 4, 1924 and played his final game on April 24, 1925.
Harry Barton debuted on April 15, 1905 and played his final game on September 26, 1905.