He changed careers in 1965, joining his father’s investment firm, and later starting his own firm: Henderson Investment Management. In the 1980s Hendy took up running and ran in the Boston and New York marathons. Marathons led to ultra runs, and Hendy completed the 100-mile Western States Endurance run three times. His best finish time was just under 28 hours when he was 60 years old.
Hendy died Sept. 26, 2020. He is survived by his wife, Patty Henderson; two sons; two daughters; 13 grandchildren; and two great-grandchildren.