Oxon Hill ManorThe present Oxon Hill Manor replaces a former mansion that was home to the nephews of George Washington, and the nephew of John Hanson, the first president elected by the Continental Congress under the Articles of Confederation. Hanson visited Oxon Hill Manor often and died there in 1783. He is believed to be buried on the estate's cemetery. The original mansion was destroyed by fire in 1895. The present 49-room Georgian style manor house was designed by Count Jules Henri de Sibour and built for Sumner Welles, Undersecretary of State in the Franklin D. Roosevelt administration. Roosevelt was a frequent visitor to the estate.
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