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.
Matt Christophersen
Class of 1988
Doreen Schmitt
Class of 1983
Luanne Speciale
Class of 1976
Patricia Patricia Garrett
Class of 1962
Mayer Mayer
Class of 1987
Doreen Oefelein Farscht
Class of 1974
Louise Gallina
Class of 1973
Laura Maiorano
Class of 1989
Michael Buttelman
Class of 1979
Bryan Portnoy
Class of 1990
Peri Edelman
Class of 1981
Pat Fields
Class of 1966
Christopher Schwab
Class of 1996
Paul Hyl
Class of 1992
Debra Miller
Class of 1978
Tammy Castleberry
Class of 1983
George Winters
Class of 1969
Ann Cote
Class of 1985
