The first fieldstone farmhouse on the site may have been built in 1725 by Burger Mynderse. The property was sold to Elsie Hasbrouck, and she in turn gave it to her son, Jonathan, who married Catherine (Tryntje) Dubois and they built the existing structure on the original foundation, if any, in 1750. The house was surrounded by a large stock farm. The home underwent two significant enlargements before it was completed in 1770. The home has an original "Dutch Jambless" fireplace. A temporary kitchen was built by the Continental Army upon their arrival in 1782. Other changes were made inside the house including the addition of an "English" style fireplace in General Washington's bedroom. Existing buildings such as stables and barns were also enlarged and improved on the site. Most Army buildings were removed by the Quartermaster-General's Office at the end of the war, with the exception of a "House in the garden", which was given to Mrs. Hasbrouck. It no longer exists.