Michael Edward Heydon (July 15, 1874 – October 13, 1913) was a professional baseball player who played catcher in the Major Leagues in 1898-1907. He played for the Chicago White Sox, Washington Senators (NL), Washington Senators (AL), Baltimore Orioles, and St. Louis Cardinals.
Mike Heydon
| Given name: | Marion Edward Heydon |
| Nicknames: | None |
| Primary Pos: | Catcher |
| Hght/Wght: | 5'10" / 155 lbs |
| Bats/Throws: | L / R |
| Born: | Jul 15, 1874 in MO |
| Died: | Oct 13, 1913 in Indianapolis, IN (39 years old) |
| Debut: | Oct 12, 1898 |