111 W. Montgomery Avenue
Rockville, Maryland 20850
The Montgomery County Historical Society has been serving the local community through its exhibitions, programs, educational activities, library, and conferences since its founding in 1944. Our mission is to collect, preserve, interpret, and share the histories of all of Montgomery County’s citizens. We operate two museums on our Rockville campus (the c.1815 Beall-Dawson House and the Stonestreet Museum of 19th Century Medicine), manage a 9,500 piece collection of historic artifacts, operate the Jane C. Sween Research Library and Montgomery County’s official government Archives, provide a home for the county’s Genealogical Society, bring scholarly and public attention to 20th century history through the Harper Center for Suburban Studies, host an annual History Conference, and provide numerous educational and community exhibitions and events every year.