Karen K. Callahan nee Gennaro Cherished mother of Frances Callahan. & Phillip Callahan. Beloved daughter of the late Christina nee Balaco & Charles Gennaro. Loving sister of Stephanie (Richard) Casolari, Dennis (Beverly) Gennaro, JoVenna (Dr. Jonathan) Muraskas & Frances (Dr. Andrew) Sampalis. Treasured aunt of many nieces & nephews. Devoted friend of many. Funeral Friday 8:30 am from Thompson & Kuenster Funeral Home, 5570 W. 95th St., Oak Lawn to St. Germaine Church for Mass at 9:30 am. Interment Holy Sepulchre Cemetery. Visitation Thursday from 3 pm until 9 pm. Assistant to the President of the American College of Surgeons. In lieu of flowers, memorials to CMF International, P.O. Box 501020, Indianapolis, Indiana 46250 317-578-2700 would be greatly appreciated.