Denny Mack debuted on May 6, 1871, playing for the Rockford Forest Citys at Agricultural Society Fair Grounds; he played his final game on September 27, 1883, playing for the Pittsburg Alleghenys at Exposition Park I.
Denny Clare debuted on September 14, 1872 and played his final game on September 16, 1872.
John Denny debuted on September 12, 1974 and played his final game on August 18, 1986.
Mack Burk debuted on May 25, 1956, playing for the Philadelphia Phillies at Connie Mack Stadium; he played his final game on June 22, 1958, playing for the at .
Denny Bautista debuted on May 25, 2004, playing for the Baltimore Orioles at Oriole Park at Camden Yards; he played his final game on August 4, 2010, playing for the San Francisco Giants at AT&T Park.
Don Erickson debuted on September 1, 1958, playing for the Philadelphia Phillies at Connie Mack Stadium; he played his final game on September 19, 1958, playing for the Philadelphia Phillies at Connie Mack Stadium.
Denny Doyle debuted on April 7, 1970, playing for the Philadelphia Phillies at Connie Mack Stadium; he played his final game on September 30, 1977, playing for the Boston Red Sox at Fenway Park II.
Denny Bautista debuted on May 25, 2004 and played his final game on August 4, 2010.
Denny Clare debuted on September 14, 1872 and played his final game on September 16, 1872.
Jerry Denny debuted on May 2, 1881 and played his final game on July 10, 1894.
John Denny debuted on September 12, 1974 and played his final game on August 18, 1986.
Denny Doyle debuted on April 7, 1970 and played his final game on September 30, 1977.
Mack Allison debuted on September 13, 1911 and played his final game on August 20, 1913.
Mack Burk debuted on May 25, 1956 and played his final game on June 22, 1958.
NBA player Shelvin Mack played for Butler.
NFL player Alex Mack played for California.
NFL player Elbert Mack played for Troy.
Mack Burk debuted on May 25, 1956, playing for the Philadelphia Phillies at Connie Mack Stadium; he played his final game on June 22, 1958, playing for the at .