About Dumbarton House

The mission of Dumbarton House, headquarters of The National Society of The Colonial Dames of America, is to support the organization’s Corporate Societies and their members, to maintain its historic museum property, and to enhance the cultural life of Washington, D.C. Through the interpretation of its historic site and collections, Dumbarton House promotes the understanding of historic preservation and of the early history of our nation, so that the lives and ideals of early Americans inspire present and future generations.


Details of our organization and achievements are presented in our annual reports.

Annual Report 2016 

Annual Report 2015 

Annual Reports Archive