Crystal Lake South High School Alumni
Crystal Lake, Illinois (IL)
Kelly Duffy (Kelly O'brien)
Crystal Lake South High School
Class of 1990
→ Join 2662 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.
Nicole Petersen
Class of 1999
Donna Stokley
Class of 1981
Emily Swanson
Class of 2010
Joni Hockett
Class of 1984
Karen English
Class of 1989
Michael Kelly
Class of 1996
Lisa Beaudoin
Class of 1998
Katie Babcock
Class of 1998
Scott Bartmess
Class of 1989
Steve Wallace
Class of 1979
Ali-reza Kashani
Class of 2008
Timothy Finch
Class of 1997
Laura Deemer
Class of 2013
Kevin Walsh
Class of 1988
Laura Fraser
Class of 1986
David Ludwig
Class of 1987
Christine King
Class of 1993
Karen Karen Lindberg
Class of 1983
