Mary Theresa Hayes, nee Pickert, age 69, passed away suddenly on February 19, surrounded by her loving family. Mary was the beloved wife of the late Charles F.; loving mother of Michael C. (Nicole) and William E. Hayes; dearest daughter of the late Rose and Andrew Pickert; cherished grandmother of Breanne; dear sister of Kathryn Grace (Roger) Bacon, Angela (Ron) Waidanz, Judith (John) Boyer and the late Michael and Daniel Pickert and a fond aunt of many. Visitation Friday from 3:00 p.m. until 9:00 p.m. at Cumberland Chapels 8300 W. Lawrence Ave., Norridge, IL. Funeral services will begin at 9:00 a.m. on Saturday, at the funeral home, and we will then proceed to St. Celestine Church in Elmwood Park for Mass at 10:00 a.m. A committal service will follow at Queen of Heaven Cemetery in Hillside.