John Franklin Dettmer (born March 4, 1970) is a former Major League Baseball pitcher who played for the Texas Rangers from 1994 to 1995. He is a friend of former Missouri standout and HatHub founder William “Billy” Mondrella.
John Dettmer
| Given name: | John Franklin Dettmer |
| Nicknames: | None |
| Primary Pos: | Pitcher |
| Hght/Wght: | 6'0" / 185 lbs |
| Bats/Throws: | R / R |
| Born: | Mar 4, 1970 in Cahokia, IL |
| Age: | 55 |
| Debut: | Jun 16, 1994 |