| Home | Teams and Players | Homerun Kings | Top Salaries | Most Runs Batted In | Hall of Fame |
| Name | Jim Mullen |
| Given Name | James Henry |
| Birth Date | 1877-1-9 |
| Birth City | Avoca, PA |
| Height | 5'10" |
| Weight | 173 lbs. |
| Batting Hand | Right |
| Pitching Hand | Right |
| Alive | No |
| Age | 79 |
| Year | Team | Hits | At Bats | Home Runs | Runs Batted | Batting Average | Wins | Losses | # of Pitching Games | Strikeouts | # of Shutouts |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1904 | Philadelphia Athletics | 14 | 52 | 1 | 5 | 0.269231 | |||||
| 1904 | Philadelphia Athletics | 19 | 102 | 0 | 4 | 0.186275 | |||||
| 1904 | Philadelphia Athletics | 10 | 58 | 0 | 4 | 0.172414 | |||||
| 1904 | Washington Senators | 14 | 52 | 1 | 5 | 0.269231 | |||||
| 1904 | Washington Senators | 19 | 102 | 0 | 4 | 0.186275 | |||||
| 1904 | Washington Senators | 10 | 58 | 0 | 4 | 0.172414 | |||||
| 1905 | Washington Senators | 31 | 163 | 0 | 13 | 0.190184 |
| Year | Position | Errors | Double Plays | Assists |
|---|---|---|---|---|
| 1904 | 1st Base | 1 | 2 | 3 |
| 1904 | 1st Base | 3 | 5 | 8 |
| 1904 | 2nd Base | 3 | 9 | 90 |
| 1904 | 2nd Base | 3 | 1 | 12 |
| 1904 | Outfielder | 0 | 0 | 0 |
| 1904 | Shortstop | 1 | 0 | 1 |
| 1905 | 1st Base | 2 | 0 | 4 |
| 1905 | 2nd Base | 14 | 8 | 97 |