John Potts debuted on April 18, 1914, playing for the Kansas City Packers at ; he played his final game on September 2, 1914, playing for the Kansas City Packers at .
Doc Potts debuted on October 3, 1892, playing for the Washington Senators at Boundary Field; he played his final game on October 3, 1892, playing for the Washington Senators at Boundary Field.
Mike Potts debuted on April 6, 1996, playing for the Milwaukee Brewers at County Stadium; he played his final game on July 15, 1996, playing for the Milwaukee Brewers at County Stadium.
John kennedy aug. 1957,
John Ellis debuted on May 17, 1969 and played his final game on October 3, 1981.
John Dodge debuted on August 29, 1912 and played his final game on October 5, 1913.
John Baumgartner debuted on April 14, 1953 and played his final game on April 21, 1953.
John Burke debuted on June 27, 1902 and played his final game on July 15, 1902.
John Burkett debuted on September 15, 1987 and played his final game on September 26, 2003.
John Cassidy debuted on April 24, 1875 and played his final game on August 12, 1885.
John Cerutti debuted on September 1, 1985 and played his final game on October 5, 1991.
John Crowley debuted on May 1, 1884 and played his final game on September 10, 1884.
John Dagenhard debuted on September 28, 1943 and played his final game on October 3, 1943.