| 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 | Harper | Charles William | 1878 | 4 | 2 | Galloway | USA | 72 | 178 | 72 | R | R |
| Year | Team | AB | HR | RBI | BA |
|---|---|---|---|---|---|
| 1899 | Cleveland Spiders | 11 | 0 | 1 | 0.1818 |
| 1900 | St. Louis Cardinals | 1 | 0 | 0 | 0.0000 |
| 1901 | St. Louis Cardinals | 116 | 1 | 10 | 0.1724 |
| 1902 | St. Louis Browns | 83 | 0 | 6 | 0.2048 |
| 1903 | Cincinnati Reds | 56 | 0 | 9 | 0.2500 |
| 1904 | Cincinnati Reds | 113 | 0 | 11 | 0.1593 |
| 1905 | Cincinnati Reds | 60 | 0 | 2 | 0.1667 |
| 1906 | Chicago Cubs | 0 | 0 | 0 | 0.0000 |
| 1906 | Cincinnati Reds | 11 | 0 | 2 | 0.2727 |
| Year | Team | W | L | G | SHO |
|---|---|---|---|---|---|
| 1899 | Cleveland Spiders | 1 | 4 | 5 | 0 |
| 1900 | St. Louis Cardinals | 0 | 1 | 1 | 0 |
| 1901 | St. Louis Cardinals | 23 | 13 | 39 | 1 |
| 1902 | St. Louis Browns | 15 | 11 | 29 | 2 |
| 1903 | Cincinnati Reds | 8 | 9 | 17 | 0 |
| 1904 | Cincinnati Reds | 23 | 9 | 35 | 6 |
| 1905 | Cincinnati Reds | 9 | 13 | 26 | 1 |
| 1906 | Chicago Cubs | 1 | 4 | 5 | 0 |
| 1906 | Chicago Cubs | 0 | 0 | 1 | 0 |
| 1906 | Cincinnati Reds | 1 | 4 | 5 | 0 |
| 1906 | Cincinnati Reds | 0 | 0 | 1 | 0 |