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.
Alex Piccirillo
Class of 1968
Linda Hollmann
Class of 1975
Bill Hummel
Class of 1970
Dianne Augugliaro
Class of 1985
Amy Donatelli
Class of 1987
Janice Grau
Class of 1970
Melissa Walmsley
Class of 1996
Christine Jaros
Class of 1988
Murry Macflurry
Class of 1976
Kimberly Stack
Class of 2004
Richard Stoner
Class of 1975
Donna Pfluke
Class of 1980
Denise Harney
Class of 2004
David Calla
Class of 1985
Rob Mcdonough
Class of 1994
Bob Grasmann
Class of 1975
Christine Gelke
Class of 1986
Maura Knight
Class of 1974
