Oatlands Hamlet is one of three adjacent properties which once
comprised the Oatlands Plantation. The plantation was built in 1803 by George Carter and remained in the Carter family through much of the 19th century. Following the civil war the plantation fell on hard time and was unoccupied when purchased in 1903 by Mr. and Mrs. William Corcoran Eustis of Washington. Mr. Eustis, a descendant of William Corcoran, after whom the Corcoran Gallery of Art is named, was an avid horseman who owned many famous hunters. Oatlands became the base for his equestrian activities. Mrs. Eustis, the daughter of former Vice President Levi P. Morton, restored the 4 acre garden so that it is now considered one or the premier gardens of Northern Virginia.
Mrs. Eustis divided the property during her ownership so that her daughters could have their own country estates. “Little Oatlands” was deeded to her daughter Margaret Finley whose husband David was Director of the National Gallery of Art. “Oatlands Hamlet” was gifted to her other daughter, Anne Emmet.
The mansion and more than 300 acres of the original Oatlands Plantation are now owned and maintained by the National Trust for Historic Preservation. “Little Oatlands” remains owned by descendants of the Finleys.