MONAHAN - Catherine A. May 2, 1944 - May 12, 2025 Of Hamburg, NY. Dearest mother of Lisa M. (Gregory) Pierce; grandmother of Victoria K. Pierce; loving daughter of the late Raymond J. and Katherine F. (Hohl) Monahan; sister of Maureen Jackson and the late Raymond, Paul, Dolores, Ronald, John (Katherine) and Joseph Monahan; also survived by nieces and nephews. Family and friends will be present Saturday, May 17, 2025 from 11-1 PM for a Celebration of Life Gathering at the CASTIGLIA FUNERAL HOME, INC.,873 Abbott Rd., South Buffalo, NY, 824-6435, where a Funeral Service will be held at 12:45 PM. In lieu of flowers, memorial contributions may be made to Roswell Park Comprehensive Cancer Center and Awesome Paws Rescue. Please share your condolences at: www.castigliafuneralhome.com