Anderson House, also known as Larz Anderson House, located at 2118 Massachusetts Avenue, NW, on Embassy Row in the Dupont Circle neighborhood of Washington, D.C., houses the Society of the Cincinnati's national headquarters, historic house museum, and research library. Anderson House was built between 1902 and 1905 as the winter residence of Larz Anderson, an American diplomat, and his wife, Isabel Weld Perkins, an author and American Red Cross volunteer. Architects Arthur Little and Herbert Browne of Boston, Massachusetts designed Anderson House in the Beaux-Arts style.