| Name: | John Shaffer |
| Given name: | John W. |
| Birth place: | Lock Haven, PA, USA |
| Birthday: | 2/18/1864 |
| Height: | 70 inches |
| Weight: | 0 lbs |
| Batting: | Unknown |
| Throwing: | Right-handed |
| Age/Age at time of death: | 62 |
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| Name: | John Shaffer |
| Given name: | John W. |
| Birth place: | Lock Haven, PA, USA |
| Birthday: | 2/18/1864 |
| Height: | 70 inches |
| Weight: | 0 lbs |
| Batting: | Unknown |
| Throwing: | Right-handed |
| Age/Age at time of death: | 62 |
| Year | Team Name | Batting Statistics | Pitching Statistics | Fielding Statistics |
|---|---|---|---|---|
| 1886 | New York Metropolitans | Hits: 0 At Bats: 3 HR: 0 RBI: 0 | Wins: 25 Losses: 17 Total Games: 45 Strikeouts: 154 Shutouts: 1 | Position: 2B Errors: 0 Double Plays: 0 Assists: 2 |
| 1887 | New York Metropolitans | Hits: 128 At Bats: 463 HR: 4 RBI: 77 | Wins: 1 Losses: 0 Total Games: 2 Strikeouts: 1 Shutouts: 0 | Position: 3B Errors: 0 Double Plays: 1 Assists: 7 |