Rachel G. "Giz" Billington, nee Babkowski, age 89, of Berwyn, IL. Loving mother of Kathy (late Terry) Musil, Rita (late Leo) Flores and the late Carol Ann Billington. Cherished grandmother of William Musil, Theresa (Michael) Simko and Leo (Amy) Flores. Dearest great-grandmother of Shawn Simko. Dear sister of Joyce Daunch and William Babkowski. Served many years as the Executive Director for the National Alzheimer's Association and retired as Executive Director of Alzheimer's International. Cremation private. Memorial Service to be held at a later date. Express your thoughts and condolences at colonialchapel.com 708-532-5400