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.
Jamie Heifetz
Class of 1994
Kevin Monahan
Class of 1970
Bill Rockwood
Class of 1977
Lou Bozzella
Class of 1984
Kristy Heppler
Class of 1989
Frank M Ambrosio Jr.
Class of 1973
John Mcnamara
Class of 1987
Stacey Euffa
Class of 1979
Caitlin Taylor Bartlein
Class of 2004
Edna Papandrea Sloan
Class of 1968
Maryann Lawson
Class of 1968
Joseph Joseph J Barra
Class of 1977
Richard Rainer
Class of 1981
John Andrews
Class of 1984
Heather Wyss
Class of 1992
Frederick Berg
Class of 1981
Teresa Herbert
Class of 1985
Judith Palladino
Class of 1973
