Sachem High School Alumni
Lake Ronkonkoma, New York (NY)
William Onderdonk
Sachem High School
Class of 1985
→ Join 5853 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.
Lynn Lynn Dashner
Class of 1976
Cheryl Seyfried
Class of 1989
Kevin Kennison
Class of 1978
Catherine Byrnes
Class of 1980
Patricia Dasch
Class of 1970
Louis Santorello
Class of 1994
Wald Tralsten
Class of 1988
Robert Taylor
Class of 1990
Deborah Dorsch
Class of 1968
Steven Giuliano
Class of 1982
Joe Paradiso
Class of 1994
Joanne Balsamo
Class of 1980
Sabrina Asch
Class of 1993
Michael Leonard
Class of 1991
Edward Hoppe
Class of 1988
Rosemary Rulli
Class of 1973
Lisa Spera
Class of 1984
Nancy Matus
Class of 1977
