Joan C. Wintercorn, 71, May 30, 2008 of Richton Park, IL. Beloved daughter of the late William and the late Henrietta Wintercorn. Devoted friend of Bernie Karlic, Loving sister of Judy (Ray) Oswald. Survived by many loving nieces, nephews, relatives and friends. Friends will gather Monday at St. Lawrence OToole Church, 214th and Govenors Hwy., Matteson, IL., 60443. Mass of Christian Burial 10 a.m. Rev. Michael A. Nacius officiating. Cremation Park Crematory Service Information A service summary is not available