Dennis was born on September 3, 1926 in Boston, son of Denis F. and Mary Blanche Cecile (Rock) Healy. He served in the United States Army during the Korean War as Corporal from 1950 to 1952. Mr. Healy worked for Digital Equipment Corporation for many years until his retirement as Senior Draftsman.
Dennis was predeceased by his beloved wife of 58 years, Althea (Duffin) Healy. He was the loving father of Donna Johnson and her husband Paul of Concord.
Funeral services and interment will be private.
