John J. Moriarty, 87

January 29, 2024

John J. Moriarty, 87, of Concord, MA, passed away peacefully on January 26th, 2024, with his family by his side.

Born in Boston in 1936, son of the late John J. Moriarty and Margaret T. (Driscoll) Moriarty, John was raised in Allston and Brighton with a great love for music, family, and his Irish roots. In 1962, John married the love of his life, Kathleen (Tierney) of Schenectady, NY. They raised their four children in Burlington and West Concord, MA, where they have lived since 1973.

John was an incredible family man and loved nothing more than a great family gathering and a good laugh. Generous, thoughtful, kind-hearted, and quick-witted, John possessed an intellectual curiosity that carried him through a lifetime of adventure and change. John enjoyed sailing, skiing, traveling Europe with his wife Kathleen, and many good times with family and friends on Sebago Lake, Maine.

A proud “Double Eagle,” John attended both BC High and Boston College on academic scholarship. He earned an MS in Physics at Rensselaer Polytechnic Institute, working summers at the Los Alamos National Lab in New Mexico. John led a distinguished career as a physicist, and later in patents and management, for over forty years at Raytheon.

John was a devout Catholic, serving in Our Lady’s and Holy Family parishes as a lector and choir member. Always concerned with the welfare of others, John was active in the Society of St. Vincent de Paul, and a reliable supporter of many charitable organizations.

John is survived by his beloved wife of 62 years, Kathleen M. Moriarty of Concord, his son Michael (Wendy) of Marshfield, MA, his daughters Mary Ellen Henry (Ed) of East Dover, VT, Eileen Silva (Bob) of Byfield, MA, and Susan Mahoney (Doug) of Westmoreland, NH. He also leaves behind his 8 cherished grandchildren, Patrick and Kevin Moriarty, Jack and Carolyn Silva, and Liam, Maeve, Neala and Emmett Mahoney.

Visiting hours in the Dee Funeral Home, 27 Bedford Street, Concord, on Thursday, February 1st from 4-7pm. John’s Funeral Mass will be celebrated in St. Bernard’s Church at Holy Family Parish, 12 Monument Square, Concord, on Friday, February 2nd at 10 am. Burial will follow in St. Bernard’s Cemetery, Concord. In lieu of flowers, please consider a donation to the Society of St. Vincent de Paul (

Arrangements are entrusted to Dee Funeral Home & Cremation Service of Concord. For guestbook, please see