Donald L. Cooper, age 73, of Thornton, IL, passed away Wednesday, September 15, 2010. Beloved husband of Nancy R. Cooper nee Marshall. Devoted father of Debra (Michael) Michalski of Lansing, IL, Cynthia (Matthew) Kimmel of Dyer, IN and Jeffrey Cooper of Thornton, IL. Proud grandfather of Michael Jr. (Elizabeth), Kathryn, Brittany, Matthew, Chandler, Grant and Brendon. Visitation Sunday, September 19, 2010 from 2:00 - 8:00 p.m. at the Smits, DeYoung-Vroegh Funeral Home 649 E. 162nd St. (Rt.6/159th St.) South Holland, IL. Funeral service Monday, September 20, 2010 " 10:00 a.m. at Village Church (14849 - 93rd Ave. Ave. Dyer, IN 46311) with Rev. Steve Miller officiating. Interment Memory Lane Memorial Park Cemetery " Crown Point, IN.