PETERSEN, Cleo B. nee Yehling of Oak Forest, formerly of Chicago, age 83. At rest on Monday May 30, 2011. Beloved wife of Charles; loving mother of Debra (James) Clay; grandmother of Kristin and Mark Clay. Sister-in-law of Charlotte (Millard) Schultz and Raymond Petersen. Aunt to many nieces and nephews. A retired teacher in Chicago Public Schools. Visitation Monday 3 pm to 9 pm at Chapel Hill Gardens South Funeral Home, 11333 S. Central Ave, Oak Lawn, IL. Funeral service Tuesday 10 am at Chapel Hill Gardens South Funeral Home. In lieu of flowers memorials can be made to the American Lung Association. Info 708-636-1200 or www.chapelhillgardenssouth.com.