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.
Ned Flanders
Class of 1988
David Wiemann
Class of 1981
Cherylanne Tucker
Class of 1981
Marcus Hernandez
Class of 1988
Sabrina Asch
Class of 1993
Judi Weicher
Class of 1961
Wendy Mason
Class of 1985
Dena Portanova
Class of 1990
Debbie Imber
Class of 1980
Karen Pleffner
Class of 1973
Cathy Mccool
Class of 1975
Patricia Murray
Class of 1984
Steven Gessler
Class of 1991
Trish O'shea
Class of 1976
Bethany Fedorenchik
Class of 1993
D J
Class of 1981
Eleanor Hattenback
Class of 1980
Cathy Beck Jacobs
Class of 1986
