Margaret Mustakos DeMatteis, 83, of Wallingford, passed away peacefully on Saturday, March 12, 2016 at the Masonicare Health Center, Wallingford. She was the beloved wife of Alexander DeMatteis.  Margaret was born in New Haven on July 5, 1932; daughter of the late John and Margaret Gamester Mustakos and had worked as a Customer Service Representative for Anthem Blue Cross/Blue Shield until her retirement.  Mother of Lorina and John DeMatteis and the late Alexis DeMatteis Malcom. Grandmother of Anthony, Joseph and Kevin Kukla and Chelsea Malcom. Sister of Helen (Joe) Mustakos Nolan, John (Rita) Mustakos and the late Harry Mustakos.

Private funeral services have been entrusted to the North Haven Funeral Home, 36 Washington Avenue. In lieu of flowers, memorial contributions for Pancreatic Cancer Research may be made to the American Cancer Society, 825 Brook St., I-91 Tech Center #3, Rocky Hill, CT 06067