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.
Justin Hoellerich
Class of 1999
Timothy Briggs
Class of 1988
Keith Mcardle
Class of 1979
Ken Moon
Class of 1988
Colleen Murray
Class of 1989
Greg Oakland
Class of 1983
Jackie Nesson
Class of 1998
Crystal Dulberg
Class of 1996
Sandra Mendez
Class of 2009
Antonio Tirado
Class of 2005
Terry Johnson
Class of 1989
Austin Jones
Class of 2005
Ian Kalanges
Class of 2004
Scott Feck Feck
Class of 1980
Kevin Borchardt
Class of 1998
Baxter Exum
Class of 1990
Dave Edgington
Class of 2001
Jamie Simek
Class of 1998
