It served as the headquarters for George Washington during the American Revolutionary War and was listed on the National Register of Historic Places in 1978.

[1] The 230 acres (93 ha) of land surrounding the Keith House was originally set aside by William Penn for use by his family, but sold it in 1697 to a group of investors after he found people already living on it.

[3] The house was likely constructed sometime around 1742, with the land being acquired through an auction by William Keith in 1761.

It was the location from which Washington planned the crossing of the Delaware River and subsequent Battle of Trenton.

[3] Legend has it that the Keith House's spring house was where double agent John Honeyman was imprisoned to inform Washington of the plans of the Hessian troops in Trenton.