Plaistow - Helen M. Diaz, 72, of Plaistow and a longtime North Andover resident, passed away Tuesday, May 12, 2026, at Exeter Hospital in Exeter, N.H.

Born in Lawrence, Massachusetts, Helen was the daughter of the late Robert and Joan (Stoessel) Beaudoin. She was a graduate of North Andover High School and retired from a career in administration with Bay State Gas Company.

In her free time, Helen cherished time spent with her family and friends, enjoyed attending country music concerts, and was a beloved regular at her local senior center.

Helen is survived by her son, Shawn Diaz (Amy) of Bedford, N.H.; her grandchildren, Gavin, Anna, and Maddy Diaz; her sister, Beth Remmes (Joseph) of Bradford; her brother, John Beaudoin (Tracy) of North Andover; her brother-in-law, Eric Blomquist of Plaistow; her aunt, Jackie Langlois (Carl) of Merrimac; as well as several nieces and nephews. She was predeceased by her sister Roberta Blomquist and her brother, Richard Beaudoin.

A private family service will be held at a later date. Online condolences may be offered at www.contefuneralhomes.com.

In lieu of flowers, memorial contributions may be made to CASA of Merrimack Valley at www.fsmv.org.