Sadie McMahon
- Given Name
- John Joseph
- Born
- 9/19/1867 — Wilmington, DE, USA
- Died
- 2/20/1954 — New Castle, DE, USA
- Weight
- 165 lbs
- Height
- 5' 9"
- Throws
- R
- Bats
- R
- Team(s)
- Philadelphia Athletics (1889–1890)Baltimore Orioles (1890–1896)Brooklyn Bridegrooms (1897)
- Debut
- 1889-07-05
- Final Game
- 1897-07-12
20-Loss Seasons
1892 · Baltimore OriolesW19L25ERA3.24WHIP1.448
1891 · Baltimore OriolesW35L24ERA2.81WHIP1.276