Crystal Lake South High School Alumni
Crystal Lake, Illinois (IL)
Kelly Duffy (Kelly O'brien)
Crystal Lake South High School
Class of 1990
→ Join 2657 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.
Jeanie Sherman
Class of 1994
Russ Schneider
Class of 1997
Jim Meldrum
Class of 1990
Jim Batastini
Class of 1982
Chet Kopec
Class of 1983
Dan Wagner
Class of 1966
Ryan Becker
Class of 2000
Beth Faulds
Class of 1989
Lisa Johnson
Class of 1999
Jennifer Leary
Class of 2013
Theresa Warnock
Class of 1988
Mindy Van Fosson
Class of 1994
Erik Paulsen
Class of 2004
James Olson
Class of 2009
Cameron Apple
Class of 1996
David Pitluck
Class of 1997
Michelle Dewey
Class of 1996
Sandi Rocheford
Class of 1987
