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.
Jim Tibbets
Class of 1963
Sheri Matarasso
Class of 1985
Teresa Keresztes
Class of 1987
Eleanor Hattenback
Class of 1980
Christine Walsh
Class of 1965
Jason Alexandrou
Class of 2001
Jennifer Maurer
Class of 1991
Edie Rogers
Class of 1988
Jennifer Cava-rosado
Class of 1993
Barney Mcelfresh
Class of 1990
Doreen Salvitti
Class of 1976
Denise Finn
Class of 1993
Jeanine Mcmahon
Class of 1992
Bruce Levine
Class of 1983
Brian Gruenberg
Class of 1980
Barbara Durand
Class of 1981
Richard C N/a
Class of 1959
Stephen Blaney
Class of 1981
