John M. Brennan Obituary
It is with great sadness that we announce the death of John M. Brennan of Arlington, Massachusetts, who passed away on February 28, 2026, at the age of 86, leaving to mourn family and friends. Leave a sympathy message to the family on the memorial page of John M. Brennan to pay them a last tribute.
He was predeceased by: his parents, Thomas Brennan and Mary (McGoldrick); and his siblings, Noreen Coye, Frank Brennan and Peggy Galvin.
He is survived by: his wife Nora May Brennan (Greally); his child Kerry Behrens (Timothy) of Northborough; his grandchildren, Ella and Peter; and his sisters, Josephine Devine (late Jack) of Canton and Nancy Brennan of Sligo. He is also survived by many loving nieces, nephews, relatives, in-laws, and dear friends.
In lieu of flowers, donations in his memory may be made to Beth Israel Lahey Health at Home Hospice Care or Buddy Dog Humane Society.
