Dennis Paul Bieniecki, 42, a resident of Atkinson, NH, died unexpectedly on Tuesday, February 10, 2026. He was born in Melrose, MA on June 9, 1983, and was the son of Marion (Fleming) Stanley and Richard Stanley.

He was raised in North Reading and moved to Atkinson, NH at the age of eleven, where he then went on to graduate from Timberlane Regional High School, Class of 2001. He was employed for several years at Auger landscaping in Hampstead, NH where he loved creating stone hardscapes. His latest employment was at Cassella Waste Management as a commercial truck driver. 

Besides his parents, Dennis is survived by his son and daughter John Ryan Paquette-Bieniecki, Olivia Lynn Paquette-Bieniecki and their mother Ashley Paquette; his daughter Kayden Reign Bieniecki and her mother Kayla Cooke who was his fiancé and love of his life; his brother Alexander Bieniecki and his partner Kathryne Pillsbury with her son Gizmo, Alex’s ex-partner Chantelle Mastrangelo with their daughter Shayla and her partner Richard Madison with their daughter Harmony Rose; sister Karen Edmund and her husband Joshua with their children Brooke and Caleb; and sister Meghan Sayer and her husband Jonathan with their son Oliver. Dennis is additionally survived by many aunts, uncles, and cousins on both sides of his family. Dennis was also close to his neighbors Jake and Estelle Halchak-Lord with their daughter Allison, who were like a second family to him. 

He is further remembered by school friends, both in his graduating class and those above and below him. Dennis loved spending time with his family and friends. He had a great sense of humor, a huge smile and loved playing practical jokes on people. He enjoyed family vacations at Lake Winnipesaukee, where many memories of fishing, boating, and water sports were made. Dennis played a lot of sports while growing up and was a dedicated fan of the Boston Bruins. Dennis recently fulfilled his dream of owning a Harley Davidson motorcycle and rode his 2022 Heritage Classic every chance he could. 

Family and friends are invited to attend calling hours on Friday, February 20, 2026 from 4pm -7pm at the Brookside Chapel & Funeral Home 116 Main St. Plaistow, NH. His funeral service and Interment will be held privately.

In lieu of flowers, donations made in Dennis’s memory, may be made to the Go Fund Me account, set up by a family friend, for the benefit of Dennis’s three children, John, Olivia, and Kayden at https://gofund.me/f9df72930