Founded in 1939 to save the historic Sherman-Fisher-Shellman House, the Society now owns three properties on Westminster's Main Street: the Sherman-Fisher-Shellman House (1807), the Kimmey House (c.1800) and Cockey's (c.1820). The Sherman-Fisher-Shellman House have been restored to its original appearance and exhibits artifacts from the time period of the first owners (1807-1842). The Kimmey House houses the Research Library, Shriver-Weybright Gallery and administrative offices.