William O'Callaghan Obituary
William O'Callaghan (Selden, New York), born on December 23, 1944 in Brooklyn, New York, passed away on November 4, 2026. You can send your sympathy in the guestbook provided and share it with the family.
He was predeceased by: his brother Daniel. He is survived by: his wife Margaret; his children, Kellyann, William, Kerryann, Owen, James and Sean Patrick; his children-in-law, John Demauro, Jeninne, Katherine and Laura; his grandchildren, Elizabeth Beyer, Emily, Maura, John William Penick, McKenna, John Demauro, Michael, Kyla, Shea, Margaret, Patrick, Annie, Molly, Reagan and Sean Patrick O'Callaghan; his great grandchild Sabrina Beyer; Joseph, Timothy and Helene.
Visitation will be held on Sunday, November 8th 2026 from 2:00 PM to 4:00 PM, from 7:00 PM to 9:00 PM, on Monday, November 9th 2026 from 2:00 PM to 4:00 PM and from 7:00 PM to 9:00 PM at the Giove Funeral Home (1000 Middle Country Rd, Selden, NY 11784). A Mass will be held on Tuesday, November 10th 2026 at 10:00 AM at the St. Margarets Church (81 College Rd, Selden, NY 11784). A burial will be held on Tuesday, November 10th 2026 at the Long Island National Cemetery (2040 Wellwood Ave, Farmingdale, NY 11735).
In lieu of flowers the family requests donations to the Michael J Fox foundation in support of Parkinson's research.
