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.
Janice Baglietto
Class of 1977
James Stalls
Class of 1984
Maria Rodriguez
Class of 1968
Lisa Petrone
Class of 1982
John Burns
Class of 1979
Joanna Logue
Class of 1990
Dan Doorty
Class of 1980
Barbara Christopher
Class of 1990
Gladys Rivera
Class of 1975
Keith Sakowsky
Class of 1979
Carol Wagner
Class of 1992
John Crismali
Class of 1975
Eric Cibelli
Class of 1996
Theresa Mansfield
Class of 1976
John Mcnamara
Class of 1987
Melinda Barry
Class of 1992
George Crawford
Class of 1979
Lori White
Class of 1980
