| 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 |
| Duke | Esper | Charles H. | 1867 | 7 | 28 | Salem | USA | 71 | 185 | 43 | L |
| Year | Team | AB | HR | RBI | BA |
|---|---|---|---|---|---|
| 1890 | Philadelphia Athletics | 61 | 0 | 11 | 0.2951 |
| 1890 | Philadelphia Phillies | 19 | 0 | 2 | 0.1579 |
| 1890 | Pittsburg Alleghenys | 7 | 0 | 0 | 0.1429 |
| 1891 | Philadelphia Phillies | 123 | 0 | 9 | 0.2195 |
| 1892 | Philadelphia Phillies | 70 | 1 | 11 | 0.2429 |
| 1892 | Pittsburgh Pirates | 9 | 0 | 1 | 0.0000 |
| 1893 | Washington Senators | 143 | 0 | 24 | 0.2867 |
| 1894 | Baltimore Orioles | 45 | 0 | 6 | 0.2222 |
| 1894 | Washington Senators | 54 | 1 | 4 | 0.2593 |
| 1895 | Baltimore Orioles | 90 | 0 | 2 | 0.1778 |
| 1896 | Baltimore Orioles | 66 | 0 | 5 | 0.1970 |
| 1897 | St. Louis Browns | 25 | 0 | 3 | 0.3200 |
| 1898 | St. Louis Browns | 27 | 0 | 5 | 0.3704 |
| Year | Team | W | L | G | SHO |
|---|---|---|---|---|---|
| 1890 | Philadelphia Athletics | 8 | 9 | 18 | 1 |
| 1890 | Philadelphia Athletics | 0 | 2 | 2 | 0 |
| 1890 | Philadelphia Athletics | 5 | 0 | 5 | 0 |
| 1890 | Philadelphia Phillies | 8 | 9 | 18 | 1 |
| 1890 | Philadelphia Phillies | 0 | 2 | 2 | 0 |
| 1890 | Philadelphia Phillies | 5 | 0 | 5 | 0 |
| 1890 | Pittsburg Alleghenys | 8 | 9 | 18 | 1 |
| 1890 | Pittsburg Alleghenys | 0 | 2 | 2 | 0 |
| 1890 | Pittsburg Alleghenys | 5 | 0 | 5 | 0 |
| 1891 | Philadelphia Phillies | 20 | 15 | 39 | 1 |
| 1892 | Philadelphia Phillies | 11 | 6 | 21 | 0 |
| 1892 | Philadelphia Phillies | 2 | 0 | 3 | 0 |
| 1892 | Pittsburgh Pirates | 11 | 6 | 21 | 0 |
| 1892 | Pittsburgh Pirates | 2 | 0 | 3 | 0 |
| 1893 | Washington Senators | 12 | 28 | 42 | 0 |
| 1894 | Baltimore Orioles | 5 | 10 | 18 | 0 |
| 1894 | Baltimore Orioles | 10 | 2 | 16 | 0 |
| 1894 | Washington Senators | 5 | 10 | 18 | 0 |
| 1894 | Washington Senators | 10 | 2 | 16 | 0 |
| 1895 | Baltimore Orioles | 10 | 12 | 34 | 1 |
| 1896 | Baltimore Orioles | 14 | 5 | 20 | 1 |
| 1897 | St. Louis Browns | 1 | 6 | 8 | 0 |
| 1898 | St. Louis Browns | 3 | 5 | 10 | 0 |
| Year | Team | POS | E | DP | A |
|---|---|---|---|---|---|
| 1890 | Philadelphia Athletics | P | 2 | 2 | 34 |
| 1890 | Philadelphia Phillies | P | 1 | 1 | 9 |
| 1890 | Pittsburg Alleghenys | P | 0 | 0 | 3 |
| 1891 | Philadelphia Phillies | P | 4 | 2 | 67 |
| 1892 | Philadelphia Phillies | OF | 0 | 0 | 1 |
| 1892 | Philadelphia Phillies | P | 1 | 1 | 33 |
| 1892 | Pittsburgh Pirates | P | 0 | 0 | 3 |
| 1893 | Washington Senators | P | 9 | 0 | 79 |
| 1894 | Baltimore Orioles | P | 0 | 1 | 21 |
| 1894 | Washington Senators | OF | 0 | 0 | 0 |
| 1894 | Washington Senators | P | 1 | 1 | 21 |
| 1895 | Baltimore Orioles | P | 6 | 0 | 43 |
| 1896 | Baltimore Orioles | P | 1 | 0 | 32 |
| 1897 | St. Louis Browns | P | 0 | 0 | 19 |
| 1898 | St. Louis Browns | P | 1 | 0 | 17 |