| 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 |
| Mel | Mazzera | Melvin Leonard | 1914 | 1 | 31 | Stockton | USA | 71 | 180 | 83 | L | L |
| Year | Team | AB | HR | RBI | BA |
|---|---|---|---|---|---|
| 1935 | St. Louis Browns | 30 | 1 | 2 | 0.2333 |
| 1937 | St. Louis Browns | 7 | 0 | 0 | 0.2857 |
| 1938 | St. Louis Browns | 204 | 6 | 29 | 0.2794 |
| 1939 | St. Louis Browns | 110 | 3 | 22 | 0.3000 |
| 1940 | Philadelphia Phillies | 156 | 0 | 13 | 0.2372 |
| Year | Team | W | L | G | SHO |
|---|---|---|---|---|---|
| 1935 | St. Louis Browns | 0 | 0 | 0 | 0 |
| 1937 | St. Louis Browns | 0 | 0 | 0 | 0 |
| 1938 | St. Louis Browns | 0 | 0 | 0 | 0 |
| 1939 | St. Louis Browns | 0 | 0 | 0 | 0 |
| 1940 | Philadelphia Phillies | 0 | 0 | 0 | 0 |