Sachem High School Alumni
Lake Ronkonkoma, New York (NY)
William Onderdonk
Sachem High School
Class of 1985
→ Join 5760 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 137 class of 1985 classmates that have joined.
Kris Cuenca-sisko
Class of 1995
Rlph Ralph Devico
Class of 1969
Amy Willis
Class of 1993
Jason Schaefer
Class of 1992
Noreen Sines
Class of 1979
Kathi Torres
Class of 1980
Michelle Vogt
Class of 1991
Bob Grasmann
Class of 1975
Steven Cantillo
Class of 2003
Donna Milani
Class of 1972
Eric Diaz
Class of 2003
Patrick Armetta
Class of 1984
Mike Demario
Class of 2000
Thomas W Dahms
Class of 1964
Amanda Besser
Class of 1999
Justin Milano
Class of 2000
Todd Coleman
Class of 1975
Eric Miller
Class of 1987
Christopher Glass
Class of 1985
Robert Mauro
Class of 1966
Diane Stephens
Class of 1985
Albert Sanchez
Class of 1974
Frank Giambruno
Class of 1979
Richard Jantz
Class of 1988
