Willoughby lived next to the Old Pine Farm Natural Land Trust in Deptford, Gloucester County, part of the New Jersey Green Acres program.
With the other crew members, William R. Huntington, James Peck, Orion Sherwood, and skipper Albert Bigelow he was arrested 5 nautical miles (9 km) from Honolulu and sentenced to 60 days in jail.
From 1971 to 1987, Willoughby and his wife were central to a group of 20 houses practicing communal living in West Philadelphia, called "The Life Center," devoted to helping the community.
During the auction at the IRS headquarters in Chester in 1970, the Willoughbys and supporters served lemonade in the hallway before submitting the winning bid of $900 to buy the car back.
In 1992, George and Lillian Willoughby provided 30+ acres of undeveloped property along Big Timber Creek as the foundation of the Old Pine Farm Natural Lands Trust located in Deptford Township, NJ.