Founded in 1952, this all-volunteer, non-profit organization works to fulfill its mission of preserving and promoting the County’s long and diverse history.


March 27, 2023 History Chat on theTown of Upper Marlboro


Please join the Prince George’s County Historical Society for its March 27, 2023, History Chat with Brian Callicott and John Peter Thompson on Zoom at 7:00 PM.  They will march into a discussion about Brian’s research on the history, heritage, people, places and culture of the Town of Upper Marlboro. Registration details for the History Chat are below. 


You are invited to a Zoom meeting.

When: Mar 27, 2023 7:00 PM Eastern Time (US and Canada)

Register in advance for this meeting:


After registering, you will receive a confirmation email containing information about joining the meeting.


Frederick DeMarr Library Now Open

The Frederick DeMarr Library re-opened on Saturday, October2, 2021, with new service hours of 11 AM to 3 PM. The DeMarr Library will follow the Coronavirus guidance issued by Prince George’s County and the Prince George’s County Memorial Library System, which will include wearing a face mask while inside the library. We appreciate your understanding. to info@pghistory.org. We appreciate your understanding.

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