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.
Wyatt Mcqueen
Class of 1987
June Crotty
Class of 1975
Christina Ciavarella
Class of 2004
Zachary Reich
Class of 1984
Katherine Domingo
Class of 1992
Allan Corby
Class of 1979
Mike Demario
Class of 2000
Denise Finn
Class of 1993
Sally Benjamin
Class of 1976
Kenneth Alveari
Class of 1999
Jeff Peters
Class of 1999
Paul Carlo
Class of 1993
John Campo Campo
Class of 1968
Debbie Lebeda
Class of 1987
George Kursar
Class of 1995
Jennifer Kopec
Class of 1990
Mark Cleere
Class of 1994
James Jurado
Class of 1970
