Crystal Lake South High School Alumni
Crystal Lake, Illinois (IL)
Derek Duffy
Crystal Lake South High School
Class of 1990
→ Join 2644 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 classmates that have joined.
Marnie Holub
Class of 1983
James Ritchie
Class of 1996
Chris Donnerson
Class of 1986
Julie Bardin
Class of 2004
Matthew Latour
Class of 1998
Wade Walker
Class of 1990
Shaun Kostka
Class of 1996
Jennifer Fitzsimmons
Class of 2001
Angie Binversie
Class of 1996
Corey Miskell
Class of 1998
Diana Tapia
Class of 2007
Nicole Perrill
Class of 2007
Susan Dahl
Class of 1980
Samantha Godsted
Class of 2006
Joely West
Class of 1999
Jim Timson
Class of 1992
Anthon Lemon
Class of 2001
Kevin Mulcahy
Class of 2002
Ryan Dunn
Class of 1994
Shaun Kostka
Class of 1996
Milhouse Van Houten
Class of 1988
Soccer Blast
Class of 1999
Michelle Pack
Class of 1980
Judith Backe
Class of 1983
