The Joel T. Headley House is a historic mansion in New Windsor, New York, built for historian and writer Joel T. Headley (1813–1897), who later served as a New York State Assemblyman for Orange County and the New York Secretary of State (1856–1857). Headley commissioned the house and grounds from local architectural theorist and landscape designer Andrew Jackson Downing with assistance from his partner, English architect Calvert Vaux. Subsequent owners were unaware of the house's significance until the 1990s, and fervor for Downing and Vaux in neighboring Newburgh often neglects its existence. The design, No. 14 "A Cottage in the Rhine style" featured in a later edition of his book Cottage Residences, also inspired the William G. DeLuc House in Minnesota, considered a rare example of Goth