Londonderry. NH: Amy G. (Archambault) Lagasse, 47, of Londonderry, died September 9, 2025, surrounded by her loved ones, at Lahey Hospital and Medical Center in Burlington, MA, after a brave three-year battle with cancer.

Born in Haverhill, MA, daughter of David and Marilou (Smith) Archambault, she was raised in Haverhill, attending Saint Joseph Grammar School. A member of the Haverhill High School Class of 1996, Amy went on to receive her bachelor's degree from Clark University and later her master's degree in education and counseling at Rivier University. Amy worked for the Timberlane Regional School District as a School Counselor at the Pollard School in Plaistow. She has been a resident of Londonderry for the past several years, and member of Saint Jude's Parish.

Amy was first and foremost a devoted wife and mother and was also dedicated to the children of the Pollard School. As a younger woman she enjoyed painting and later she enjoyed trips to the beach and spending time with her family at their camp on Lake Waukewan in Meredith, NH.

Amy is survived by her loving and devoted husband of twenty-six years, Jason Lagasse, and will also be sadly missed and lovingly remembered by her son, Henry J. Lagasse of Watertown, MA,  a daughter, Molly G. Lagasse of Londonderry, her parents David and Marilou Archambault of Londonderry, her sister and brother-in-law, Alison and Justin Marcotte of Londonderry,  grandmother Cecile (Lalumiere) Smith, her father-in-law and mother-in-law Victor and Barbara Lagasse of Londonderry and several aunts, uncles, nieces, nephews and cousins.

Relatives and friends may call on Monday morning, September 15, 2025, from 9:30 A.M. until 12 Noon at Brookside Chapel & Funeral Home, 116 Main St.., Plaistow, NH. Her Funeral Mass will follow at 1 p.m. at All Saints Church, 120 Bellevue Avenue Haverhill, MA. Burial will be in Elmwood Cemetery, Bradford. Donations in Amy's name may be made to: V Foundation for Cancer Research, 14600 Weston Parkway, Cary, NC 27513 or to Polar Bears International (fundraising@pbears.org).  To send a message of condolence to the family or to share a cherished memory, please visit: brooksidechapelfh.com