Jack, 84, died February 28, 2018, in Madison, Wisconsin, where he had lived for 65 years. He was an orthopedic surgeon in Madison and got his medical degree from the University of Wisconsin in 1958.

Jack was a Big 10 champion fencer, master's national champion in road bike racing and one of the best master's skiers in the Midwest. His children inherited Jack's athletic ability. Son, Eric, won an unprecedented five gold medals in speed skating at the 1980 Olympic Winter Games and daughter, Beth, took the bronze medal in the 3,000 skating event at the same Olympics.

Jack participated in the NSA Trails Project at the Wilderness Canoe Base. He jumped at Cave Junction during the 1954 season.