O'NEILL - Jacqueline L. (nee Shanks) April 17, 1936 - September 13, 2025 Of South Buffalo, NY. Beloved wife of the late Daniel R. O'Neill Jr.; dearest mother of Maureen L. (Kevin) Higgins, Daniel R. (Tara) O'Neill III, Michael S. (Jacqueline) O'Neill, Timothy P. (Colleen) O'Neill, Gavin T. (Karen) O'Neill, Susan E. (Mark) Lauber and Kathleen M. (Shaun) Cleary; grandmother to 21 grandchildren and 8 great-grandchildren; loving daughter of the late Stewart W. and Martha V. (Conway) Shanks; sister of Paul (Patricia) Shanks, Susan (late Jim) Kelley and the late Carol (Jim) Danieu, Barbara (Edward) Smith and Robert (Susan) Shanks; also survived by nieces and nephews. Family and friends will be present Wednesday, September 17, 2025 from 2-7 PM at the CASTIGLIA FUNERAL HOME, INC., 873 Abbott Rd., South Buffalo, NY, (716) 824-6435. A Mass of Christian Burial will be celebrated at Our Lady of Charity Parish (Holy Family Worship Site), 1901 South Park Ave., South Buffalo, NY, Thursday, September 18, 2025 at 10:30 AM. (Please assemble at church). Interment Woodlawn Cemetery. Memorial contributions may be made to the Leukemia Society. Please share your condolences at: www.castigliafuneralhome.com