Age 97, of Mt. Lebanon, passed away in Cleveland, Ohio on Wednesday evening, December 1, 2021. Daughter of the late Henry Francis Crowley and Mary Margaret Strohmaier Crowley. Beloved wife for 73 years of the late William A. Duffy, Jr. (2020).  Devoted mother of Mary Anne Duffy, William H. Duffy (Monica), Thomas A. Duffy (Carol), Susan Zupancic (Richard), Timothy M. Duffy (Janice) and Dr. John F. Duffy (Michelle). Also survived by her 16 grandchildren, 24 great-grandchildren, numerous nieces and nephews. The family will receive friends at Laughlin Cremation and Funeral Tributes, 222 Washington Road, Mt. Lebanon, on Sunday, December 5, 2021 from 4:00 until 7:00 p.m. Her Funeral Mass will be celebrated in Our Lady of Grace Church (St. Michael the Archangel Parish), on Monday, December 6, 2021 at 10:00 a.m. Interment will follow in Queen of Heaven Cemetery. In lieu of flowers, contributions may be made to Salvation Army of Western Pennsylvania, 700 N. Bell Avenue, Carnegie, PA 15106 (or wpa.salvationarmy.org).