| Ottoville Graduation Classes 1990 to 1999 |
| Class of 1990 |
| Class of 1991 |
| Class of 1992 |
| Class of 1993 |
| Class of 1994 |
| Class of 1995 |
| Class of 1996 |
| Class of 1997 |
| Class of 1998 |
| Class of 1999 |