Mary Kay Mavrinac, nee Olson. Beloved wife of the late Thomas. Loving sister of Jerri, Richard R. (Bridget), Rita (Randy) Brown, Suzie (Larry) Wilmington, Raymond (Tonya), David (Sandra), and the late Robert. Fond aunt of many nieces and nephews. Mary Kay’s friend and guardian Opha Mulrenin was a great source of comfort and guidance during her last years. Mary Kay’s greatest joy came from her husband, Tom, who made her laugh every day. Funeral Tuesday 8:45 a.m. from Beverly Ridge Funeral Home, 10415 S. Kedzie Ave. to St. Christina Church Mass 9:30 a.m. Interment St. Mary Cemetery. Visitation Monday 3:00 – 8:00 p.m. 773-779-4411