on December 22, 2020. Beloved husband of Illean (nee Isenberg); Loving father of Sharon (Paul) Stratton and Judith Coleman. Dear Brother of Fai Coffin; Devoted grandfather of Jennifer (Chris), Stephanie (Ananda) and Angela; Adoring great-grandfather of Dominick. He was a design engineer at Westinghouse and a professor of mechanical engineering at Villanova, quality control and expert on aircraft engines, and mechanized armor at the Department of Defense and math professor at DCCC. Bill was also a water safety instructor who taught swimming and lifesaving at his local YMCA. He was an avid reader, and enjoyed history and poetry as well as water skiing, boating and swimming. Services and interment are private. Contributions in his memory may be made to Michael J..Fox Foundation, Donation Processing, PO Box 5014. Hagerstown, MD 21741, www.michaeljfox.org