The Morris-Jumel Mansion, located in historic Washington Heights, is the oldest house in Manhattan. It served as a headquarters for both sides in the American Revolution. It was built by Roger Morris in 1765 and reflects the Palladian style of architecture. When the Revolutionary War began in 1776, Morris, who was a Loyalist, and his wife returned to England.
Benson John Lossing, ed. Harper's Encyclopedia of United States History (vol. 10) (New York, NY: Harper and Brothers, 1912)