Lois M. Trentacosti, nee Klemp, age 80, of Glenwood, IL, passed away on Thursday, March 17, 2011. Beloved wife of Robert; loving mother of the late Ellen (Boyd Bud ) Witvoet and Susan Trentacosti; dear grandmother of Rob (Megan) Witvoet and Amanda (William) McMahan; cherished great-grandmother of Drew Witvoet, James McMahan and the late Jocelyn McMahan; fond sister of the late Warren (Gerri) Klemp, George (Adeline) Klemp, Joanne (Ed) Mullennix and Harold (Debbie) Klemp. Visitation Tuesday, March 22, 2011 from 2:00 P.M ." 9:00 P.M. at the Smits,DeYoung-Vroegh Funeral Home, 649 E. 162nd St. (Rt.6/159th St.) South Holland, IL. Funeral service Wednesday, March 23, 2011 at 11:00 A.M. at the Lynwood United Reformed Church (1990 East Glenwood-Dyer Road, Lynwood, IL 60411) with services conducted by Rev. Keith Davis. Interment Chapel Hill Gardens South " Worth, IL. In lieu of flowers memorial contributions may be given to the education fund at Lynwood United Reformed Church.