William D. O'Brien Obituary
We bid farewell to William D. O'Brien of Watertown, New York, whose journey of life gracefully concluded on September 12, 2025 at the age of 85. William touched countless lives with warmth and kindness, leaving behind cherished memories that will forever echo in hearts. Leave a sympathy message to the family on the memorial page of William D. O'Brien to pay them a last tribute.
He was predeceased by: his parents, John J. O'Brien and Mary O'Brien (Purce); his wife Katherine "Kay" O'Brien; his sons, Terry and John O'Brien; his siblings, Mary O'Brien and Michael O'Brien; and his nephew Bob Norberg.
He is survived by: his children, Mary K. O'Brien of Watertown, NY, Dennis O'Brien of Dexter, NY and Joseph O; his daughters-in-law, Colleen O'Brien and Paige O'Brien; his grandchildren, Patrick, Sean, Gabby, Lelan, Conor, Bethany, Aiden, Halle and Emily; his brother James; his sister-in-law Barbara O; and his pet Toby. He is also survived by nieces, nephews, cousins.
In lieu of flowers, donations in William's memory may be made to Hospice of Jefferson County, 1398 Gotham Street, Watertown, NY 13601 or to the Terry O'Brien Scholarship at IHC c/o NNY Community Foundation 131 Washington St., Watertown, NY 13601. .
