Okeley Manor
Coordinates: 38°45′40″N 77°07′12″W / 38.761°N 77.120°W Okeley Manor was an early 19th-century plantation in Fairfax County, Virginia, United States. Okeley, the residence of prominent Alexandria physician Richard Chichester Mason (1793–1869), was one of the principal Mason family estates in Northern Virginia. Mason' plantation house was used as a hospital during the American Civil War and burned to prevent the spread of smallpox.
Upon the death of Mason's grandfather George Mason on 7 October 1792, Richard Chichester Mason's father Thomson inherited a portion of the Gunston Hall estate. Around 1817, Thomson Mason divided the property into two plantations: Dogue Run farm for his son Richard C. Mason and Hunting Creek farm adjacent to Mount Vernon for his elder brother Thomson Francis Mason (1785–1838).
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