The Royall House is notable for its excellent preservation, its possession of the only surviving slave quarters in Massachusetts, and its American Revolution associations with General John Stark, Molly Stark, and General George Washington. Among the historic objects on display is a tea box, said to be from the same batch that was dumped into Boston Harbor on the night of December 16, 1773, and a very small painting by John Singleton Copley of Isaac Royall, Jr. The Royalls were the largest slave holding family in Massachusetts history.