| Home | Teams and Players | Homerun Kings | Top Salaries | Top RBIs | Hall of Fame |
| First Name | Last Name | Given Name | Birth Year | Birth Month | Birth Day | Birth City | Birth Country | Height | Weight | Age | Bats | Throws |
| Jack | Hannifin | John Joseph | 1883 | 2 | 25 | Holyoke | USA | 71 | 167 | 62 | R | R |
| Year | Team | AB | HR | RBI | BA |
|---|---|---|---|---|---|
| 1906 | New York Giants | 30 | 0 | 3 | 0.2000 |
| 1906 | Philadelphia Athletics | 1 | 0 | 0 | 1.0000 |
| 1907 | New York Giants | 149 | 1 | 15 | 0.2282 |
| 1908 | Boston Doves | 257 | 2 | 22 | 0.2062 |
| 1908 | New York Giants | 2 | 0 | 0 | 0.0000 |
| Year | Team | W | L | G | SHO |
|---|---|---|---|---|---|
| 1906 | New York Giants | 0 | 0 | 0 | 0 |
| 1906 | Philadelphia Athletics | 0 | 0 | 0 | 0 |
| 1907 | New York Giants | 0 | 0 | 0 | 0 |
| 1908 | Boston Doves | 0 | 0 | 0 | 0 |
| 1908 | New York Giants | 0 | 0 | 0 | 0 |
| Year | Team | POS | E | DP | A |
|---|---|---|---|---|---|
| 1906 | New York Giants | 2B | 0 | 0 | 2 |
| 1906 | New York Giants | 3B | 0 | 0 | 2 |
| 1906 | New York Giants | SS | 3 | 2 | 18 |
| 1906 | Philadelphia Athletics | 0 | 0 | 0 | |
| 1907 | New York Giants | 1B | 1 | 5 | 13 |
| 1907 | New York Giants | 3B | 1 | 2 | 15 |
| 1907 | New York Giants | OF | 0 | 0 | 0 |
| 1907 | New York Giants | SS | 2 | 2 | 8 |
| 1908 | Boston Doves | 2B | 4 | 0 | 64 |
| 1908 | Boston Doves | 3B | 10 | 15 | 79 |
| 1908 | Boston Doves | OF | 0 | 0 | 0 |
| 1908 | Boston Doves | SS | 5 | 0 | 36 |
| 1908 | New York Giants | OF | 0 | 0 | 0 |