Crystal Lake South High School Alumni
Crystal Lake, Illinois (IL)
Derek Duffy
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.
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.
Erin Perry
Class of 1997
Corrine Kaczmarek
Class of 1983
Kurt Strobach
Class of 1979
Julie Vara
Class of 1982
Debra Willis
Class of 1994
Jennifer Moore
Class of 1989
Jeffrey Clarkson
Class of 1997
Dan Wilder
Class of 1983
Gail Mcdonald
Class of 1987
Steve Moncatch
Class of 1998
Wayne Bambrick
Class of 1979
Joni Hockett
Class of 1984
Sara Nelson
Class of 2003
Derek Lee
Class of 2000
Nadine Legh-page
Class of 1991
Marc Sabo
Class of 1990
Philip Finn
Class of 1996
Rebecca Fitzgerald
Class of 1999
