I am a descendent of John Manners Sr. b.1679 in Yorkshire. Although I cannot answer your question, the notes I have say that the Schenck Family line can be found at Hopewell Historical Society on Main Street in Hopewell. It also notes that Manners info can be found on the Schenck family file at the Hunterdon historical Society in Flemington NJ. If I find out more I will let you know. My GG Grandfather was David Stout Manners, he was the son of David Manners and Mary Schenck Manners.