Frank's wife, Mary, rode for the U.S. Equestrian Team in show jumping for a decade, competing in two Olympic Games and two Pan American Games, where she was an individual and team gold medalist. She is a senior rated national judge in three disciplines and an international judge for show jumping. She was inducted into the Show Jumping Hall of Fame in 1992. Together, Frank and Mary Chapot own and operate Chado Farms, a breeding and training farm with approximately 40 horses in residence.