Crystal Lake South High School Alumni
Crystal Lake, Illinois (IL)
Kelly Duffy (Kelly O'brien)
Crystal Lake South High School
Class of 1990
→ Join 2655 Alumni from Crystal Lake South High School that have already claimed their alumni profiles.
→ There are 58 classes, starting with the class of 1943 all the way up to class of 2023.
KELLY'S PROFILE
| First Name | Kelly |
| Last Name | Duffy |
| Maiden Name | O'brien |
| Graduation Year | Class of 1990 |
| Gender | Female |
| City | N/A |
| State/Province | FL |
| Country | United States |
| Occupation | College Professor |
| Married | Yes |
| Favorite School Memory | Going to the senior prom with Derek |
| About Me | Moved to Florida Married my childhood sweetheart and best friend Derek Gave birth to our beautiful son Kevin in 2002 |
Class of 1990 Alumni
→ Reunite with 49 class of 1990 alumni that have joined.
Darrel Jones
Class of 1984
Sarah Richards
Class of 1998
Jean Leamy
Class of 1988
Melissa Kelsey
Class of 1981
Mary Jane Lyons
Class of 1943
Cori Kendrick
Class of 1981
Carol Pugesek
Class of 1993
Shelly Gibson
Class of 1991
Tyler Malkin
Class of 2008
Jeanie Sherman
Class of 1994
Jennifer Leary
Class of 2013
David Ullsmith
Class of 1986
Joe Tulga
Class of 1979
Thomas` Purnell
Class of 2002
Erica Swanson
Class of 1999
Ron Hedgcock
Class of 2006
Amy Kirkland
Class of 1987
Timothy Smith
Class of 1996
