The Deacon John Grave House, located at 581 Boston Post Road in Madison, Connecticut, is a saltbox house that was built by Deacon John Grave in 1681. The Grave family lived in the house for 300 years. The Deacon John Grave Foundation was formed in 1983 to save the house from demolition, and converted it into a museum. See also List of the oldest buildings in Connecticut Madison, Connecticut References Grave, John Houses completed in 1681 1681 establishments in the Thirteen Colonies Grave, John Saltbox architecture in Connecticut Connecticut Colony Museums in New Haven County, Connecticut Grave, John Grave, John Historic districts on the National Register of Historic Places in Connecticut National Register of Historic Places in New Haven County, Connecticut