Crystal Lake South High School Alumni
Crystal Lake, Illinois (IL)
Derek Duffy
Crystal Lake South High School
Class of 1990
→ Join 2646 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.
Stephanie Bishop
Class of 1997
Alyssa Rochford
Class of 2007
Elizabeth Jegglie
Class of 1984
Jen Babcock
Class of 1984
Kara Hansen
Class of 1989
Vince Amandes
Class of 1983
Emily Conway
Class of 2015
Margaret Schohn Schohn
Class of 1984
Jay Murphy
Class of 2000
Renee Edlund
Class of 1999
Karen Buenzli
Class of 1983
Bobbie Potter
Class of 1989
Jennifer Manfre
Class of 1999
Brendan Gaughan
Class of 2005
John Adams
Class of 1995
Jennifer Leary
Class of 2013
Heather Voss
Class of 1996
Mark Farshtchi
Class of 1989
