John Chapman House - Credit: Wikimedia Commons
The London Purchase Farm, also known as the John Chapman House, is located on Eagle Road in Upper Makefield Township, Pennsylvania. The house was listed on the National Register of Historic Places on January 24, 1974. London Purchase Farm was one of the Headquarters for George Washington's army in December 1776. Both General Henry Knox and Captain Alexander Hamilton were stationed here, before the Crossing of the Delaware River and the Battle of Trenton. Read more on Wikipedia
Source: en.wikipedia.org