William J. O'Neil Obituary

With sadness, we share the passing of William J. O'Neil (Chicago, Illinois). William, born on October 20, 1932, passed away on August 30, 2026. Family and friends are welcome to leave their condolences on this memorial page and share them with the family.

He was predeceased by: his spouse Claire O'Neil; and his siblings, Jack O'Neil (Catherine), Bob O'Neil (Betty) and Janet Weisent (Charles). He is survived by: his daughters, Alice Chapman (Mike), Jill Braverman (Randy) and Tricia O'Neil (Mike Drehobl); and his grandchildren, Michael, Patrick (Paige), Matthew (Emilie), Jack (Lily), Mark (Olivia), Meghan and Kate.

In lieu of flowers, donations can be made to the Alzheimer's Association (https://www.alz.org).