Sachem High School Alumni
Lake Ronkonkoma, New York (NY)
William Onderdonk
Sachem High School
Class of 1985
→ Join 5860 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 143 class of 1985 alumni that have joined.
Margaret Margaret Ashby
Class of 1980
Ginny Reeves
Class of 1999
Cathy Nielsen
Class of 1978
Roberta Velaney
Class of 1972
Margaret Lang
Class of 1975
David Simmons
Class of 1978
Howard Schimmoller
Class of 1981
Kathryn Hall
Class of 1969
Angela Jones
Class of 1990
Jeremy Fenton
Class of 1990
Paulette Kashansky Raxenberg
Class of 1994
Mike Jones
Class of 2004
Chris Berthelon
Class of 2003
Carol Galati
Class of 1976
Olivia Marine
Class of 1993
Fred Westerbeke
Class of 1971
Karen Ognibene
Class of 1988
Christine Gelke
Class of 1986
