Peter W. O'Callaghan Obituary
We bid farewell to Peter W. O'Callaghan of Waltham, Massachusetts, whose journey of life gracefully concluded on November 14, 2025 at the age of 62. Peter 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 Peter W. O'Callaghan to pay them a last tribute.
He was predeceased by: his parents, Frank Callahan and Sarah Callahan (Craig). He is survived by: his wife Kimberly A. O'Callaghan of Waltham; his children, Aidan P. O'Callaghan (Amy) of Pepperell, Charley T. O'Callaghan of Waltham, Liam C. O'Callaghan of Waltham and Gracie R. O'Callaghan of Waltham; his grandchild Aliana; his brothers, John Callahan (Carol Glennon) of Everett, Francis "Frank" Callahan (Sonia) of Taunton and David Callahan (Suzanne) of New Ipswich; and his in-laws, Mark Wentling (Janet) of Webster, Patrice Boothby (David) of Nashua, Bethany Marcaitis (late John) of Fairport and Hope Weisburn (John) of Akron, Ohio. He is also survived by many nieces and nephews and cousins.
Donations in Peter's memory may be made to St. Mary's Church online at https://www.wesharegiving.org. or by mail to Saint Mary's, 133 School Street, Waltham, MA 02451.
