Visit Our Headquarters Dumbarton House

Federal Period House Museum

Open: Year-round, Tuesdays-Sundays
11:00 am – 3:00 pm
Closed: Major holidays

Dumbarton House

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News & Events

History Happy Hour

September 25, 2014 at 5:30 pm
Alexander Ramsey House

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Smithsonian Magazine Museum Day Live

September 27, 2014 at 11:00 am
Dumbarton House

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