Dumbarton House is an historic museum property and the national headquarters of The National Society of The Colonial Dames of America (NSCDA). Their mission is to support the NSCDA Corporate Societies and their members, maintain an historic museum property, and contribute to the cultural life of the community. By interpreting its historic site and collections, Dumbarton House Museum promotes the understanding of historic preservation and the early history of our nation.

Visitors to Dumbarton House are transported back in time to the early 19th century when Joseph Nourse, the first Register of the U. S. Treasury, and his wife Maria lived here.

The museum offers exhibits and collections that showcase the lives and ideals of early Americans, inspiring current and future generations. Dumbarton House also offers educational programs, history lessons, and distance learning opportunities. Their gift shop provides unique and historically themed items.

Additionally, the museum hosts events and can be booked for special occasions. Plan your visit to Dumbarton House and experience the rich history and cultural significance of this remarkable national landmark