District of Columbia of Societies

 

Columbia Historical Society 333 Constitution Avenue, NW Room 4826 Washington, DC 20001-2866 Telephone: 202-785-2068 Fax: 202-887-5785 Internet: http://www.dcchs.org/

Historical Society of Washington, D. C.

801 K Street, NW at Mt. Vernon Square Washington, DC 20001 Telephone: 202-383-1800

Internet: http://www.historydc.org/