Dennis L. LaMontagne, 64, of Barrington NH passed away Saturday July 16, 2022 suddenly due to a medical emergency. He was born on January 1, 1958 in Acushnet, MA; and was the son of the late Roger and Helen (Saulnier) LaMontagne. Dennis graduated from St. Anthony’s High School of New Bedford, MA and earned an Associate’s Degree in Business Management from the University of Phoenix later in life. Dennis worked for Liberty Mutual for many years and recently retired this past November. He thoroughly enjoyed his career and the colleagues he met there, whom he still saw on social occasions. Throughout his life he enjoyed spending time with his life partner Linda Patrick, playing golf, cooking, following the New England sports teams, and spoiling his beloved dog Layla. He is survived by his daughters Danielle LaMontagne of Deerfield, NH; and Erica Noonan and husband Eric of Rollinsford, NH; his grandchildren Janessa, Zoe, and Gavin, his siblings Richard LaMontagne and wife Shirley, Janine Thomas, and Elaine Sheerin, nieces and nephews Jon and Melissa, Kevin and Christine, Jenny and Kevin, Sam and Alexa, and Katie. A celebration of life will take place at a later time.