estate at New Bridge to Major General Baron von Steuben, the Inspector General of the Continental Army, on December 23, 1783, on condition that he occupy it and not rent it to a tenant. To meet these terms he had to keep a bed and servant at all times and make regular visits. His aide-de-camp, Captain Benjamin Walker, resided there, operating the mill and river dock in partnership with Jan Zabriskie. Captain Walker purchased the Zabriskie estate on Steuben's behalf in 1786. This is the only extant 18th century building that Steuben owned. Steuben renovated the war-damaged house and sold the house to back to the Zabriskie family, Jan, son of the Loyalist, in 1788. His grandson, John J. Zabriskie, died trying to free the mill waterwheel in 1793. Andrew Zabriskie, a cousin, purchased the Steuben House in 1815. His descendants owned the property until 1909. The Steuben House Commission was created in 1926 to purchase Baron Steuben's home at New Bridge. The State took possession of the historic mansion and of ground for $9,000 on June 27, 1928. It was renovated and opened as the museum headquarters of the Bergen County Historical Society in September 1939. The Bergen County Historical Society continued stewardship of the site by purchase of land between the Steuben House and the encroaching autoparts yard in 1944. In 1954, the Society was able to persuade the County of Bergen to divert the planned 4-lane highway to the north of the site instead of alongside the historic site. The highway bridge opened in 1956 and the one-lane 1889 swing bridge was closed to vehicles. It remains open for pedestrians. Historic district The Steuben House, the bridge, the tide mill location and wharf are in the core area of Historic New Bridge Landing. Three additional buildings were moved onto the adjacent property of the Bergen County Historical Society, a private non-profit volunteer organization. The Demarest House was moved here from New Milford in 1956 and is maintained by the Blauvelt-Demarest Foundation. It was listed individually on the NRHP in 1983. The Westervelt-Thomas Barn was relocated from Washington Township in 1958. The County of Bergen moved the Campbell-Christie House here in 1977. It was also listed individually on the NRHP in 1983. The Society erected a working replica of a Bergen Dutch Out-Kitchen in 1991 and an outhouse in 2009. The Historic New Bridge Landing Park Commission was