Chester A. Duczynski, age 69, of Monson, passed away on Sunday, May 25, 2025 with his loving family by his side. He was born in Holyoke on February 8, 1956 to Regina (Stankiewicz) Duczynski and the late Albert Duczynski. Chet attended Mater Dolorosa School, Holyoke High School, received his associates degree from Springfield Technical Community College and worked towards a master’s degree from Cambridge College. After various Engineering positions at Ludlow Packaging, Lego and Diamond Match Co., Chet joined the Milton Bradley company, remaining a dedicated employee for over 33 years as it transitioned to Hasbro and currently Cartamundi, most recently as Manager of Manufacturing Engineering. Chet was a faithful member of the former Mater Dolorosa Church for many years (now Our Lady of the Cross). He participated in responsibly hunting ducks and geese in his early years but was always interested in cars, racing, football and especially enjoyed sharing the love of hockey with his daughter and granddaughter. Chet will be dearly missed by his wife of 45 years, Barbara M. (Brach) Duczynski; their daughter Mary Rufo, granddaughter Kiki Videyko, his mother Regina, brother Greg Duczynski and wife Lisa, sister-in-law Carolyn Brach-Norris and husband Bill, brother-in law Drew Darnell and wife Rita Starzyk, and many beloved nieces, nephews, extended families and loyal friends. Relatives and friends are invited to attend a calling hour for Chet from 10:00 to 11:00 a.m. on Monday, June 2nd in Our Lady of the Cross Parish Church, Holy Cross Avenue, Holyoke. The Mass of Christian Burial will begin at the church at 11:00 a.m. Burial will follow at Mater Dolorosa Cemetery in South Hadley. In lieu of flowers, his family would be pleased if you honored Chet’s memory doing what he loved best, take someone out to dinner or a drink or a coffee and spend time enjoying each other’s company. If you wish to honor Chet by making a donation, please consider contributing to the Sisters of St. Joseph, 577 Carew Street, Springfield, MA 01104; The Springfield Thunderbirds Foundation https://springfieldthunderbirds.com/community/t-birds-foundation ; or Dakin Humane Society https://www.dakinhumane.org/, in his memory.