Crystal Lake South High School Alumni
Crystal Lake, Illinois (IL)
Derek Duffy
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.
DEREK'S PROFILE
| First Name | Derek |
| Last Name | Duffy |
| Graduation Year | Class of 1990 |
| Gender | Male |
| City | N/A |
| State/Province | FL |
| Country | United States |
| Occupation | Substation Electrician |
| Married | Yes |
| Favorite School Memory | There are so many... but the one that stands out the most is meeting the love of my life Kelly O' Brien |
| About Me | Moved to Florida in 1992, married Kelly O'Brien in 1995. We had our son in 2002 who I cherish everyday. |
Class of 1990 Alumni
→ Reunite with 49 class of 1990 alumni that have joined.
J.r. Bailey
Class of 1991
Traci Johnson
Class of 1988
Bob Cates
Class of 1987
Lauren Terradista
Class of 2003
Kimberly Rosenthal
Class of 1983
Sharon Boyd
Class of 1990
Michael Smith
Class of 1986
Dipal Chokshi
Class of 1999
Lisa Bohonowicz
Class of 1998
Allison Roberts
Class of 1983
Carin Gurgone
Class of 1992
Danielle Axelson
Class of 1983
Nikhil Chokshi
Class of 1993
Joseph Desimone
Class of 2001
Brittany Restrepo
Class of 2006
Nicole Braun
Class of 2008
Jenny Retzlaff
Class of 1997
Courtney Gilmore
Class of 2003
