O'DONNELL - John B. Of Lackawanna, NY, February 16, 2025. Beloved husband of Marilyn C. (Kosiorek) O'Donnell; devoted father of Teresa M. O'Donnell, Brian J. (Sherry) O'Donnell, Kathleen D. (Joseph) Domelowicz and Barrett J. (Elizabeth) O'Donnell; loving grandfather of Paige, Emma, Lauren, Jay and Drew; brother of Dennis O'Donnell and the late C. James (Arlene) O'Donnell and Mary Lou (Gerald) Griffin; also survived by nieces and nephews. No prior visitation. A Celebration of Life Service will be held at the convenience of the family. Mr. O'Donnell was a U.S. Army Veteran of the Vietnam Era. Arrangements by: CASTIGLIA FUNERAL HOME, INC., 873 Abbott Rd., South Buffalo, NY, (716) 824-6435. Please share your condolences at: www.castigliafuneralhome.com