Cock-Cornelius House, also known as Wyckoff-Underhill House, is a historic home located at

Locust Valley Locust Valley is a hamlet and census-designated place (CDP) located in the Town of Oyster Bay in Nassau County, on the North Shore of Long Island, in New York, United States. The population was 3,406 at the 2010 census. History The rollin ...

Nassau County, New York Nassau County ( ) is a county in the U.S. state of New York. At the 2020 U.S. census, Nassau County's population is 1,395,774. The county seat is Mineola and the largest town is Hempstead. Nassau County is situated on western Long Isl ...

. It is a 1- to -story, U-shaped wood-frame dwelling sheathed in wood shingles. The main block is stories and five bays wide. The oldest section of the house is dated to the

Federal Federal or foederal (archaic) may refer to: Politics General *Federal monarchy, a federation of monarchies *Federation, or ''Federal state'' (federal system), a type of government characterized by both a central (federal) government and states or ...

period, about 1790. The house was expanded in the 1840s and in the 1920s-1930s. ''See also:'' It was listed on the

National Register of Historic Places The National Register of Historic Places (NRHP) is the United States federal government's official list of districts, sites, buildings, structures and objects deemed worthy of preservation for their historical significance or "great artistic ...

in 2006.

References

Houses on the National Register of Historic Places in New York (state) Federal architecture in New York (state) Houses completed in 1790 Houses in Nassau County, New York National Register of Historic Places in Oyster Bay (town), New York {{NassauCountyNY-NRHP-stub