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.
Joseph Caputo
Class of 1979
Theresa Miliano
Class of 1983
Betty Lou Becht
Class of 1962
Christine Christine Dunn
Class of 1978
Rob Mcdonough
Class of 1994
Gary Miglionico
Class of 1977
Cinthia Dimaio
Class of 1982
David Beinhacker
Class of 1994
Thomas Murphy
Class of 1991
James Giordano
Class of 1982
Kristine Egan
Class of 2004
Karen Brevoort
Class of 1988
John Smith
Class of 1994
Mary Melfi
Class of 1989
Tim Mccarthy
Class of 1985
Renee Dolan
Class of 1986
Bob Grasmann
Class of 1975
Kevin Jones
Class of 1985
