Peter W. O’Callaghan

Mr. Peter W. O’Callaghan, of Waltham, Passed Friday, November 14, 2025, surrounded by family at Care Dimensions in Lincoln. He was 62.

Peter leaves his wife, Kimberly A. O’Callaghan of Waltham, his children, Aidan P. O’Callaghan and his wife, 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 and his wife, Carol Glennon, of Everett, Francis “Frank” Callahan and his wife, Sonia, of Taunton, and David Callahan and his wife, Suzanne, of New Ipswich, New Hampshire; his in-laws, Mark Wentling and his wife, Janet, of Webster, New York, Patrice Boothby and her husband, David, of Nashua, New Hampshire, Bethany Marcaitis (late John) of Fairport, New York, and Hope Weisburn and her husband, John, of Akron, Ohio; and many nieces and nephews.

Family and friends will honor and remember Peter’s life by gathering for an Evening Wake from 4 p.m. to 7 p.m. on Wednesday, November 19th at Joyce Funeral Home, 245 Main Street (Rte. 20), Waltham. They will gather again at 8:30 the next morning before leaving in procession to St. Mary's Church, 133 School St, Waltham, where his Funeral Mass will be celebrated at 9:30 a.m. Burial will follow at Mount Feake Cemetery, Waltham.

COMPLETE OBITUARY TO FOLLOW