The youngest players to hit a home run.

  1. Tommy Brown Brooklyn (NL) - 17 years 257 days, hit on 08-20-1945
  2. Pat Callahan Indianapolis (AA) - 17 years 264 days,, hit on 07-06-1884
  3. Danny Murphy Chicago (NL) - 18 years 21 days, hit on 09-13-1960