Jane C. Sween Research Library and Special Collections:

Wednesday-Friday, 10:00 am – 4:00 pm and Saturday, 12:00 pm – 4:00 pm


Beall-Dawson Museum, Stonestreet Museum of 19th Century Medicine, and Museum Shop:

Saturday-Sunday, 12:00 pm – 4:00 pm


Montgomery History Administrative Office:

Monday-Friday, 10:00 am – 5:00 pm



Montgomery History is located in the Beall-Dawson Historical Park in downtown Rockville, where you can find our research library, both museums, administrative office, and museum shop. A small parking lot (including designated handicapped parking) for the campus is located on Middle Lane, between the Beall-Dawson Museum and the Library.

Jane C. Sween Library
Street address: 42 W. Middle Lane, Rockville, MD 20850
Mailing address: 111 W. Montgomery Avenue, Rockville, MD 20850
Phone: (301) 340-2974


Inclement Weather: We follow MCPS – if schools are closed for weather, the museums and library are closed as well. On the weekends we follow the County Recreation Department – if daytime classes and activities are canceled, the museums and library are closed.  (MC Rec Weather Hotline: 240-777-6889)


Beall-Dawson Museum
Stonestreet Museum of 19th Century Medicine
Museum Shop
103 W. Montgomery Avenue
Rockville, MD 20850
Phone: (301) 762-1492


Admission to Museums:
Admission is free to all museums. Both guided and self-guided tours are available.

Summer visitors: Please be advised that the Beall-Dawson Museum has limited air-conditioning.  We do our best to provide air flow through the museum, but it does get warm; plan your visit accordingly.  (The Stonestreet Museum and the Library are air-conditioned.)



Administrative Offices
111 W. Montgomery Avenue
Rockville, MD 20850
Phone: (301) 340-2825
Fax: (301) 340-2871