Crystal Lake South High School Alumni
Crystal Lake, Illinois (IL)
Derek Duffy
Crystal Lake South High School
Class of 1990
→ Join 2663 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.
Mike Hansen
Class of 1999
Casey Faure
Class of 2010
Troy Martell
Class of 1994
Aimee Elizabeth
Class of 2007
Scott Mikrut
Class of 2000
Christopher Hodo
Class of 1998
Cheryl Crossmock
Class of 2000
Nicole Petersen
Class of 1999
Shauna Hansen
Class of 1995
Vicki Eimermann
Class of 1985
Henry "hank" Jones
Class of 1983
Jim Maloney
Class of 1985
Julie Kiefer
Class of 1986
Sean Bobrow
Class of 2001
Audrey Lagerstrom
Class of 2002
Bobbi Lehan
Class of 1990
Steve Daughaday
Class of 1989
Amy Mueller
Class of 1987
