| Ottoville Graduation Classes 1960 to 1969 |
| Class of 1960 |
| Class of 1961 |
| Class of 1962 |
| Class of 1963 |
| Class of 1964 |
| Class of 1965 |
| Class of 1966 |
| Class of 1967 |
| Class of 1968 |
| Class of 1969 |