Iroquois High School Alumni
Elma, New York (NY)
Colleen O'sullivan (Colleen Sommersdorf)
Iroquois High School
Class of 1975
→ Join 3191 Alumni from Iroquois High School that have already claimed their alumni profiles.
→ There are 70 classes, starting with the class of 1938 all the way up to class of 2025.
COLLEEN'S PROFILE
| First Name | Colleen |
| Last Name | O'sullivan |
| Maiden Name | Sommersdorf |
| Graduation Year | Class of 1975 |
| Gender | Female |
| Current Location | Lancaster (village), New York |
| Hometown | Elma, New York |
| Relationship Status | Married |
Class of 1975 Alumni
→ Reunite with 66 class of 1975 alumni that have joined.
Donna Wooster
Class of 1959
Jill Neubauer
Class of 1987
Joseph Syracuse
Class of 1980
Ronald Matthews
Class of 1973
Jennelle Serwacki
Class of 2002
Cynthia Ulrich
Class of 1973
Steve Walker
Class of 1986
Robert Mentecky
Class of 1988
James Benner
Class of 1976
Timothy Littlefield
Class of 1974
Don Williams
Class of 1977
Mark Wolff
Class of 1993
Jill Lyon
Class of 1992
Patty Mausteller- Neff
Class of 1977
Bruce Martin
Class of 1970
Candy Herold
Class of 1975
Bruce Trzepacz
Class of 1998
Janet Hamms
Class of 1972
Leah Colern
Class of 1985
Julianne Lewandowski
Class of 2000
Josh Piesczynski
Class of 2014
Shaun Steinhilber Shaun Steinhilber
Class of 1977
Shaun Snyder
Class of 2010
Christine Halliday
Class of 1972
William Guido
Class of 1976
Matt Owczarczak
Class of 2003
Dan Beilman
Class of 1969
Dawn Bishop
Class of 1987
George Hoffman
Class of 1983
Nick Morath
Class of 2007
Shauna Cook
Class of 1969
Dawn Kwiatkowski
Class of 1984
Justin Kubiak
Class of 1987
Mark Thieneman
Class of 1983
Larry Daley
Class of 1981
Jane Atkinson
Class of 1966
Upcoming Class of 1975 Reunions
Plan a Class of 1975 Reunion for Free
ICHS Class of 1975 - Reunion
Invited Classes: 1975
Date: Jul 12, 2025
Description: Hors d'oeuvres, Buffet Dinner, Cash Bar and Music ( Nothing loud , so you can talk with old friends) Would appreciate c...(read more)
Recent Class of 1975 Reunions
ALL ALUMNI REUNION ICS
Invited Classes: All Classes
Date: Aug 12, 2011
Description: Live Music - featuring Gary Boldt ICS ALUMNI, CASH BAR, LAST YEAR WAS BIGGEST EVER, EXPECTING MORE THIS YEAR, SPREAD THE...(read more)
All year Reunion at O'Briens Sleepy Hollow
Invited Classes: All Classes
Date: Aug 13, 2010
Description: Start all your reunions here best Ice breaker ever. see friends from all years