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| First Name | Last Name | Given Name | Birth Year | Birth Month | Birth Day | Birth City | Birth Country | Height | Weight | Age | Bats | Throws |
| John | Irwin | John | 1861 | 7 | 21 | Toronto | CAN | 70 | 168 | 72 | L | R |
| Year | Team | AB | HR | RBI | BA |
|---|---|---|---|---|---|
| 1882 | Worcester Ruby Legs | 4 | 0 | 0 | 0.0000 |
| 1884 | Boston Reds | 432 | 1 | 0 | 0.2338 |
| 1886 | Philadelphia Athletics | 13 | 0 | 1 | 0.2308 |
| 1887 | Washington Nationals | 31 | 2 | 3 | 0.3548 |
| 1888 | Washington Nationals | 126 | 0 | 8 | 0.2222 |
| 1889 | Washington Nationals | 228 | 0 | 25 | 0.2895 |
| 1890 | Buffalo Bisons | 308 | 0 | 34 | 0.2338 |
| 1891 | Boston Reds | 72 | 0 | 15 | 0.2222 |
| 1891 | Louisville Colonels | 55 | 0 | 7 | 0.2727 |
| Year | Team | W | L | G | SHO |
|---|---|---|---|---|---|
| 1882 | Worcester Ruby Legs | 0 | 0 | 0 | 0 |
| 1884 | Boston Reds | 0 | 0 | 0 | 0 |
| 1886 | Philadelphia Athletics | 0 | 0 | 0 | 0 |
| 1887 | Washington Nationals | 0 | 0 | 0 | 0 |
| 1888 | Washington Nationals | 0 | 0 | 0 | 0 |
| 1889 | Washington Nationals | 0 | 0 | 0 | 0 |
| 1890 | Buffalo Bisons | 0 | 0 | 0 | 0 |
| 1891 | Boston Reds | 0 | 0 | 0 | 0 |
| 1891 | Louisville Colonels | 0 | 0 | 0 | 0 |
| Year | Team | POS | E | DP | A |
|---|---|---|---|---|---|
| 1882 | Worcester Ruby Legs | 1B | 4 | 1 | 0 |
| 1884 | Boston Reds | 3B | 87 | 7 | 191 |
| 1886 | Philadelphia Athletics | 3B | 0 | 0 | 4 |
| 1886 | Philadelphia Athletics | SS | 2 | 0 | 3 |
| 1887 | Washington Nationals | 3B | 2 | 0 | 7 |
| 1887 | Washington Nationals | SS | 3 | 1 | 12 |
| 1888 | Washington Nationals | 3B | 7 | 1 | 10 |
| 1888 | Washington Nationals | SS | 23 | 5 | 87 |
| 1889 | Washington Nationals | 3B | 32 | 14 | 129 |
| 1890 | Buffalo Bisons | 1B | 1 | 13 | 11 |
| 1890 | Buffalo Bisons | 2B | 2 | 1 | 5 |
| 1890 | Buffalo Bisons | 3B | 29 | 13 | 139 |
| 1891 | Boston Reds | 3B | 3 | 0 | 5 |
| 1891 | Boston Reds | OF | 4 | 0 | 5 |
| 1891 | Boston Reds | SS | 1 | 0 | 1 |
| 1891 | Louisville Colonels | 3B | 9 | 1 | 22 |