Harry Camnitz debuted on September 29, 1909 and played his final game on October 3, 1911.
Harry Camnitz debuted on September 29, 1909, playing for the Pittsburgh Pirates at Exposition Park/Forbes Field; he played his final game on October 3, 1911, playing for the St. Louis Cardinals at Robison Field.
Howie Camnitz debuted on April 22, 1904 and played his final game on May 3, 1915.
Howie Camnitz debuted on April 22, 1904, playing for the Pittsburgh Pirates at Exposition Park; he played his final game on May 3, 1915, playing for the Pittsburgh Rebels at .
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.
Harry Baumgartner debuted on September 6, 1920 and played his final game on October 2, 1920.