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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 |
| Heinie | Groh | Henry Knight | 1889 | 9 | 18 | Rochester | USA | 68 | 158 | 78 | R | R |
| Year | Team | AB | HR | RBI | BA |
|---|---|---|---|---|---|
| 1912 | New York Giants | 48 | 0 | 3 | 0.2708 |
| 1913 | Cincinnati Reds | 397 | 3 | 48 | 0.2821 |
| 1913 | New York Giants | 2 | 0 | 0 | 0.0000 |
| 1914 | Cincinnati Reds | 455 | 2 | 32 | 0.2879 |
| 1915 | Cincinnati Reds | 587 | 3 | 50 | 0.2896 |
| 1916 | Cincinnati Reds | 553 | 2 | 28 | 0.2694 |
| 1917 | Cincinnati Reds | 599 | 1 | 53 | 0.3038 |
| 1918 | Cincinnati Reds | 493 | 1 | 37 | 0.3205 |
| 1919 | Cincinnati Reds | 448 | 5 | 63 | 0.3103 |
| 1920 | Cincinnati Reds | 550 | 0 | 49 | 0.2982 |
| 1921 | Cincinnati Reds | 357 | 0 | 48 | 0.3305 |
| 1922 | New York Giants | 426 | 3 | 51 | 0.2653 |
| 1923 | New York Giants | 465 | 4 | 48 | 0.2903 |
| 1924 | New York Giants | 559 | 2 | 46 | 0.2809 |
| 1925 | New York Giants | 65 | 0 | 4 | 0.2308 |
| 1926 | New York Giants | 35 | 0 | 3 | 0.2286 |
| 1927 | Pittsburgh Pirates | 35 | 0 | 3 | 0.2857 |
| Year | Team | W | L | G | SHO |
|---|---|---|---|---|---|
| 1912 | New York Giants | 0 | 0 | 0 | 0 |
| 1913 | Cincinnati Reds | 0 | 0 | 0 | 0 |
| 1913 | New York Giants | 0 | 0 | 0 | 0 |
| 1914 | Cincinnati Reds | 0 | 0 | 0 | 0 |
| 1915 | Cincinnati Reds | 0 | 0 | 0 | 0 |
| 1916 | Cincinnati Reds | 0 | 0 | 0 | 0 |
| 1917 | Cincinnati Reds | 0 | 0 | 0 | 0 |
| 1918 | Cincinnati Reds | 0 | 0 | 0 | 0 |
| 1919 | Cincinnati Reds | 0 | 0 | 0 | 0 |
| 1920 | Cincinnati Reds | 0 | 0 | 0 | 0 |
| 1921 | Cincinnati Reds | 0 | 0 | 0 | 0 |
| 1922 | New York Giants | 0 | 0 | 0 | 0 |
| 1923 | New York Giants | 0 | 0 | 0 | 0 |
| 1924 | New York Giants | 0 | 0 | 0 | 0 |
| 1925 | New York Giants | 0 | 0 | 0 | 0 |
| 1926 | New York Giants | 0 | 0 | 0 | 0 |
| 1927 | Pittsburgh Pirates | 0 | 0 | 0 | 0 |
| Year | Team | POS | E | DP | A |
|---|---|---|---|---|---|
| 1912 | New York Giants | 2B | 6 | 4 | 26 |
| 1912 | New York Giants | 3B | 0 | 0 | 3 |
| 1912 | New York Giants | SS | 2 | 0 | 12 |
| 1913 | Cincinnati Reds | 2B | 23 | 43 | 358 |
| 1913 | Cincinnati Reds | SS | 1 | 0 | 7 |
| 1913 | New York Giants | 3B | 0 | 0 | 0 |
| 1913 | New York Giants | SS | 0 | 1 | 1 |
| 1914 | Cincinnati Reds | 2B | 44 | 56 | 394 |
| 1914 | Cincinnati Reds | SS | 1 | 1 | 5 |
| 1915 | Cincinnati Reds | 2B | 4 | 12 | 80 |
| 1915 | Cincinnati Reds | 3B | 14 | 34 | 280 |
| 1916 | Cincinnati Reds | 2B | 4 | 9 | 108 |
| 1916 | Cincinnati Reds | 3B | 17 | 32 | 252 |
| 1916 | Cincinnati Reds | SS | 2 | 2 | 9 |
| 1917 | Cincinnati Reds | 2B | 0 | 2 | 9 |
| 1917 | Cincinnati Reds | 3B | 18 | 28 | 331 |
| 1918 | Cincinnati Reds | 3B | 14 | 37 | 253 |
| 1919 | Cincinnati Reds | 3B | 12 | 22 | 226 |
| 1920 | Cincinnati Reds | 3B | 14 | 30 | 252 |
| 1920 | Cincinnati Reds | SS | 0 | 0 | 3 |
| 1921 | Cincinnati Reds | 3B | 15 | 27 | 188 |
| 1922 | New York Giants | 3B | 11 | 25 | 207 |
| 1923 | New York Giants | 3B | 9 | 18 | 233 |
| 1924 | New York Giants | 3B | 7 | 23 | 286 |
| 1925 | New York Giants | 2B | 0 | 0 | 2 |
| 1925 | New York Giants | 3B | 3 | 1 | 16 |
| 1926 | New York Giants | 3B | 1 | 1 | 13 |
| 1927 | Pittsburgh Pirates | 3B | 1 | 0 | 14 |