| Ottoville Graduation Classes 1911 to 1919 |
| Class of 1911 |
| Class of 1912 |
| Class of 1913 |
| Class of 1914 |
| Class of 1915 |
| Class of 1916 |
| Class of 1917 |
| Class of 1918 |
| Class of 1919 |