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.
Michele Astman
Class of 1991
Stanley Latopolski
Class of 1971
Jaime Bendetto
Class of 1994
Debra Valentin
Class of 1982
Jacqueline Evertsz
Class of 2004
Todd Coleman
Class of 1975
Patti Dirusso
Class of 1976
Patricia Ward
Class of 1983
Joanne Abt
Class of 1988
Nancy Loucas
Class of 1984
Heather Flannery
Class of 1993
Dorothea Losasso
Class of 1979
Heather Heather Sellitti
Class of 1996
Donna Buonocore
Class of 1977
John Schenna
Class of 1981
Stacey Stacey Yurick
Class of 1984
Sarah Genes
Class of 2004
Bill Warrell
Class of 1997
