Hi Dave, I found some additional info on the headquarters homes for Gen. Washington and Greene tonight in the Bucks County Historical Magazine. There are several articles dated October 15, 1895 which were written when historical markers were erected on both sides of the Deleware River where the Colonial Army crossed to attack Trenton, NJ. On page 316 is a picture of the Keith house and the historical marker on the home. There is also a detailed story about the Christmas eve meeting at the Samuel Merrick house. It tell of the arrival of Gen. Washington and the other officers on the staff and the discussion of Gen. Washington's plan to cross the Deleware River and attack Trenton the next night. On page 325 of the same volume is an article by Hon. Samuel Gwinner who owned the land where the army massed before crossing the Deleware, and he tells that the Samuel Merrick home was less than 2 miles from the Keith house and was located on land then owned by Mr. Obrien. This article appears to have been written 1898, so I don't know if this will help much, but maybe someone will know where the Obrien farm was located in 1898. He also mentions that the Merrick house was located on the road from Brownsburg to Newtown. Mr. Gwinner also talks about an old log home used by Gen. Washington which was located on land owned by Thomas B. Lownes that had burned some years before 1898. Apparently stones from the cellar of this burned home were used in the foundation of the monument erected at McKonkey's Ferry ( now Washington Crossing). There is also a copy of the speech given at the ceremony for erecting the monuments, and it is great! There are powerful patriotic passages in that article starting on page 308. Tom Green