Thank you. I finally found the book in "The Pennsylvania Archives," 2nd Series, Vol 13 and 14. I am still looking for a muster roll for the Lancaster Co. group. Don't know if Nicholas Heinrich was at Amboy but definitely mentions being in New York, Trenton, White Plains, Fort Lee, Fort Washington, Paulus Point?, Princeton, Elizabeth Town, and Hackensack NJ, and serving with Generals Washington, Sullivan and Mercer, according to his deposition.