It was built between 1765 and 1768 by Dirck Jansen who owned the ground on which the place was built. He built it for his son John Johnson Sr. It was one of the largest houses in Germantown. The Johnson's were Quakers and were members of the Society of Friends.
Years after the house was built is was used as a stop on the Underground Railroad. There is a historic marker at the enterance of the house that I have a picture of. Now a days the house offers tours to people that want to look at it. When I was there the house was very nice a kept up. They preserved it very nicely. It was amazing to see a place where slaves hid after they escaped.