Harry Haon was born Aug. 2, 1934, in London, England. He died of pneumonia Jan. 15, 2013, in St. Francis Hospital, Wilmington, Del. He was in very good spirits on Christmas Day, when the family gathered together in Lancaster, Pa.

Harry graduated cum laude from Tower Hill School in Wilmington. At Princeton, his senior-year roommates were Fred Pardee, Walter Stapleton, George Easter, Al Mather, John E. Thompson, Tom Duggan, and Bill von Oehsen. Harry majored in engineering and was a member of Tower Club. His professional career was with the DuPont Co., where his father and grandfather also had been employed. He was a dedicated environmentalist and conservationist and a Sierra Club member.

Harry is survived by Carolyn, his wife of 32 years; his sons, Jay and Andy Haon; his sister, Anne Cook s’44; stepdaughter Eliza Craig; stepson Peter Craig; niece Phyllis Wechsler; and nephew George Cook. He was devoted to his grandchildren, Miles, Lila, Ian, Kellen, Noah, and Chloe; and his grandnephews, Alex and Jason. He was beloved by family and friends and will be greatly missed.

Undergraduate Class of 1956