Dorothy L. Cooper, nee Oehl, age 90, beloved wife of the late Adolph. Loving mother of Russell (Barbara) Cooper of Kalamazoo, MI and Jean (Ed) Donohue of New Lenox, IL. Dear grandmother of 7 and great-grandmother of 11. Twin sister of the late Marion Kirk. Visitation Thursday from 11:00 a.m. until time of funeral service 1:00 p.m. at Colonial Chapel 15525 S. 73rd Ave. (155th/Wheeler Dr. & Harlem) Orland Park. Interment Fairmount-Willow-Hills Cemetery. Memorials to Alzheimers Association preferred. Express your thoughts and condolences at www.colonialchapel.com 708-532-5400.