Sachem High School Alumni
Lake Ronkonkoma, New York (NY)
William Onderdonk
Sachem High School
Class of 1985
→ Join 5855 Alumni from Sachem High School that have already claimed their alumni profiles.
→ There are 66 classes, starting with the class of 1958 all the way up to class of 2024.
WILLIAM'S PROFILE
| First Name | William |
| Last Name | Onderdonk |
| Graduation Year | Class of 1985 |
| Gender | Male |
| Hometown | Holbrook, New York |
| Relationship Status | Married |
| About Me | Living and working in beautiful Lancaster County, PA. |
Class of 1985 Alumni
→ Reunite with 142 class of 1985 alumni that have joined.
John Boshart
Class of 1999
Diane O'reilly
Class of 1990
Larry Doorty
Class of 1989
Jason Betz
Class of 1997
Joe Colozzo
Class of 1984
Laura Terry
Class of 1962
Fursiya Mussawi
Class of 1992
Ali Faulkner
Class of 1995
Gina Nicora
Class of 1978
Jeannemarie Mc Hugh
Class of 1988
Karen Lobe
Class of 1979
Nicole Deblasio
Class of 1996
Jaylen Jaylen Johnson
Class of 2024
Patricia Mulrain
Class of 1983
Melissa Page
Class of 2002
Desiree Fyfe
Class of 1986
Christine Rea
Class of 1984
Frank Linkh
Class of 1983
