Sachem High School Alumni
Lake Ronkonkoma, New York (NY)
William Onderdonk
Sachem High School
Class of 1985
→ Join 5827 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 141 class of 1985 alumni that have joined.
Lucille Losasso
Class of 1981
Robert Frankland
Class of 1978
Brian Nava
Class of 1994
Laurie Uhlmann
Class of 1992
Michael Mccrain
Class of 1994
Jasmine Antoine Jasmine Antoine
Class of 2013
Tammy De Leon
Class of 1981
James Engelbert
Class of 1979
Gina Arcella
Class of 1996
Ellen Zachman
Class of 1971
Lois Faulkner
Class of 1975
Robert Guttman
Class of 1977
Ethan Gorelick
Class of 1991
Terri Passenant
Class of 2000
Barry Eisenberg
Class of 1988
Kristy Loewenstein
Class of 1994
Elaine Baudier
Class of 1980
Laurie Nichols
Class of 1972
Debbie Oreste
Class of 1983
Diane Davis
Class of 1963
Andrea Diprizito
Class of 1975
Kyle Leliowitz
Class of 2001
Joseph Biava
Class of 1980
James Ducker
Class of 1982
Douglas Sloan
Class of 1988
Ron Annechiarico
Class of 1967
Jennifer Milano
Class of 1990
George Granata
Class of 1961
Mike Majewski
Class of 1992
Kevin Brennan
Class of 1988
Alissa Weinstein
Class of 1985
Dorothy Delaney
Class of 1964
Dave Nadolne
Class of 1985
Carla Walsh
Class of 1995
Thomas Isaiah Michael
Class of 2017
Nicholas Guginsky
Class of 2016
