Rolla Hamilton Mapel (March 9, 1890 – April 6, 1966) was a Major League Baseball pitcher who played for the St. Louis Browns in 1919.
Rolla Mapel
| Given name: | Rolla Hamilton Mapel |
| Nicknames: | None |
| Primary Pos: | Pitcher |
| Hght/Wght: | 5'11" / 165 lbs |
| Bats/Throws: | L / L |
| Born: | Mar 9, 1890 in Lee's Summit, MO |
| Died: | Apr 6, 1966 in San Diego, CA (76 years old) |
| Debut: | Aug 31, 1919 |