St. Mary’s County Historical Society

Welcome to SMCHS

The Saint Mary's County Historical Society is located in Tudor Hall in downtown Leonardtown, Maryland.
Street Address: 41680 Tudor Place
Tudor Hall is an important 18th century house in St. Mary's County, Maryland. Of the Georgian architecture, it is the oldest building in Leonardtown. Tudor Hall was built by the Barnes family, either Abraham or his son, Richard, both of whom were active in the American Revolution. The name Tudor Hall was given to the house by a 19th century owner, Henry G.S. Key, a cousin of Francis Scott Key.
Normal Hours of Operation
Business Office and Tours
Wednesday thru Friday    9:00 am - 4:00 pm
Research Center Open
Thursday, and Friday 11:00 am - 4:00 pm 
 2nd and 4th Saturday 10:00 am - 4:00 pm
Call 301-475-2467
If you are a current member of the
St. Mary's County Historical Society and have an email address, please send us an email to  
Thanks For Visiting Our Website
Saint Mary's County Historical Society, Inc. a non-profit 501(c)(3) 


Nuptials on the Lawn ...

Nuptials on the Lawn of Historic Tudor Hall

Tudor Hall, home of the Barnes and Key families, the first public library in St. Mary’s County, Maryland, and currently the headquarters of the St. Mary’s County Historical Society, has a wonderful front lawn available for weddings up to approximately 150 attendees. No catering services or kitchen services are provided. The Society will work with families, caterers and wedding planners to assure a memorable wedding and/or reception. Tudor Hall is within one block of the County Circuit Courthouse. Intimate weddings of less than 20 may be held inside Tudor Hall.

Tudor Hall is a Georgian period, small mansion, on a hill overlooking the Leonardtown waterfront. Originally constructed in the 1760s, the home boasts a wonderful lawn with Willow Oak shade trees, a pleasure garden and the front porch insert portico.

For further information contact the Society’s Executive Director, at 301-475-2467 (office) or 301-518-1351 (cell), or by email at For information on the Society, view the Society’s website at Tudor Hall is located at 41680 Tudor Place in Leonardtown, Maryland.

Maryland Big Tree Program - Award

Our Big Beautiful English Yew is now Maryland's State Co-Champion.
Awarded on April 12, 2014.

Tudor Hall. Home of the SMCHS
Tudor Hall ca. 1746
 Home of the St. Mary's County Historical Society
St. Mary's County has been making history since the Ark and Dove arrived here from England in March, 1634. Maryland was the 4th successful English colony in what was to become the United States and St Mary's is known as the Mother County of Maryland.
Chronicles Logo
The St. Mary's County Historical Society, which was established in 1951, strives to identify, collect, and preserve materials of any kind related to the history of this area.
Find and follow your roots and history back to 1634.
We hope your time here will be enjoyable and fruitful.