John Jonas "Doc" Kerr (January 17, 1882 – January 9, 1937) was a Major League Baseball player who played for the Pittsburgh Rebels and the Baltimore Terrapins in 1914 and 1915.
Doc Kerr
| Given name: | John Jonas Kerr |
| Nicknames: | None |
| Primary Pos: | Catcher |
| Hght/Wght: | 5'10" / 190 lbs |
| Bats/Throws: | B / R |
| Born: | Jan 17, 1882 in Dellroy, OH |
| Died: | Jan 9, 1937 in Baltimore, MD (54 years old) |
| Debut: | Apr 22, 1914 |