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| First Name | Last Name | Given Name | Birth Year | Birth Month | Birth Day | Birth City | Birth Country | Height | Weight | Age | Bats | Throws |
| George | Caster | George Jasper | 1907 | 8 | 4 | Colton | USA | 73 | 180 | 48 | R | R |
| Year | Team | AB | HR | RBI | BA |
|---|---|---|---|---|---|
| 1934 | Philadelphia Athletics | 15 | 0 | 4 | 0.2667 |
| 1935 | Philadelphia Athletics | 22 | 0 | 0 | 0.2273 |
| 1937 | Philadelphia Athletics | 90 | 0 | 11 | 0.2111 |
| 1938 | Philadelphia Athletics | 101 | 0 | 10 | 0.1980 |
| 1939 | Philadelphia Athletics | 43 | 0 | 3 | 0.2093 |
| 1940 | Philadelphia Athletics | 62 | 0 | 4 | 0.1290 |
| 1941 | St. Louis Browns | 29 | 0 | 1 | 0.1034 |
| 1942 | St. Louis Browns | 15 | 0 | 0 | 0.0667 |
| 1943 | St. Louis Browns | 22 | 0 | 1 | 0.1364 |
| 1944 | St. Louis Browns | 20 | 0 | 2 | 0.2500 |
| 1945 | Detroit Tigers | 11 | 0 | 1 | 0.1818 |
| 1945 | St. Louis Browns | 3 | 0 | 0 | 0.3333 |
| 1946 | Detroit Tigers | 7 | 0 | 0 | 0.1429 |
| Year | Team | W | L | G | SHO |
|---|---|---|---|---|---|
| 1934 | Philadelphia Athletics | 3 | 2 | 5 | 0 |
| 1935 | Philadelphia Athletics | 1 | 4 | 25 | 0 |
| 1937 | Philadelphia Athletics | 12 | 19 | 34 | 3 |
| 1938 | Philadelphia Athletics | 16 | 20 | 42 | 2 |
| 1939 | Philadelphia Athletics | 9 | 9 | 28 | 1 |
| 1940 | Philadelphia Athletics | 4 | 19 | 36 | 0 |
| 1941 | St. Louis Browns | 3 | 7 | 32 | 0 |
| 1942 | St. Louis Browns | 8 | 2 | 39 | 0 |
| 1943 | St. Louis Browns | 6 | 8 | 35 | 0 |
| 1944 | St. Louis Browns | 6 | 6 | 42 | 0 |
| 1945 | Detroit Tigers | 1 | 2 | 10 | 0 |
| 1945 | Detroit Tigers | 5 | 1 | 22 | 0 |
| 1945 | St. Louis Browns | 1 | 2 | 10 | 0 |
| 1945 | St. Louis Browns | 5 | 1 | 22 | 0 |
| 1946 | Detroit Tigers | 2 | 1 | 26 | 0 |
| Year | Team | POS | E | DP | A |
|---|---|---|---|---|---|
| 1934 | Philadelphia Athletics | P | 1 | 1 | 9 |
| 1935 | Philadelphia Athletics | P | 1 | 1 | 19 |
| 1937 | Philadelphia Athletics | P | 4 | 2 | 44 |
| 1938 | Philadelphia Athletics | P | 4 | 1 | 44 |
| 1939 | Philadelphia Athletics | P | 1 | 4 | 21 |
| 1940 | Philadelphia Athletics | P | 2 | 2 | 27 |
| 1941 | St. Louis Browns | P | 1 | 3 | 20 |
| 1942 | St. Louis Browns | P | 1 | 1 | 17 |
| 1943 | St. Louis Browns | P | 0 | 1 | 17 |
| 1944 | St. Louis Browns | P | 0 | 0 | 13 |
| 1945 | Detroit Tigers | P | 0 | 0 | 9 |
| 1945 | St. Louis Browns | P | 0 | 0 | 2 |
| 1946 | Detroit Tigers | P | 1 | 1 | 11 |