Bernard C. Therriault

Bernard C. Therriault, 84, a longtime resident of Chelmsford of 58 years, passed away peacefully on Saturday, October 10, 2026, at his home surrounded by his loving family. He was the beloved husband of the late Barbara M. (Bourque) Therriault with whom he shared 41 years of marriage until her passing in 2007.

He was born in Fitchburg on February 11, 1942, and was the son of the late Eugene and Marion (Moulliet) Therriault.

Bernard graduated from Saint Bernard High School in Fitchburg as class president and valedictorian and cum laude from Boston College in 1963 under a full-tuition scholarship. He served in the Air Force as a communications officer from 1963 to 1968, where he was stationed at Hill Airforce Base (AFB) in Utah and Don Muang Royal Thai AFB in Thailand. He worked as a technical writer and then software engineer at Honeywell Information Systems and Bull Worldwide Information Systems in Billerica, MA for 26 years. He earned an MBA from Northeastern University in 1979.

Bernard was a devoted husband, exceptional tennis player, avid reader, music lover and an amazing father and grandfather. He loved taking an annual road trip out to Arizona and vacationing with his family at Rangeley Lake in Maine. Most importantly, Bernard was a wonderful mix of kind, humble, and wise. His quick wit and his gentle words of wisdom will be greatly missed by his family and friends.

Bernard leaves his children Brenda M. Korwan and her husband David of Westford, Susan M. Cheesman of Concord, NH, and Brian M. Therriault of Belchertown, MA; his two brothers Gene Therriault of Latham, NY, and Stephen Therriault of Rotterdam, NY; and his four grandchildren Katie Laird and her husband Timothy, Rachel Korwan, Sarah Cheesman, and Noah Therriault.

In addition to his loving wife, Bernard is predeceased by his son-in-law Todd Cheesman.

Visiting hours will be held on Sunday, October 18, 2026, from 1pm – 4pm at the BLAKE CHELMSFORD FUNERAL HOME, 24 Worthen St., CHELMSFORD. His Mass of Christian Burial will be celebrated on Monday, October 19, 2026, at 11am at St. Mary Parish, 25 North Rd., CHELMSFORD. KINDLY GATHER AT THE CHURCH. Interment to follow in West Chelmsford Cemetery, Chelmsford.