Don, I have some information on Richard Addams who married Gertien op de Graeff.They had 9 children one of whom was Susannah Addams who married Conrad Kister/Custer (I've seen many spellings for his last name). Richard was b. 1676, and was one of the founders of Germantown, PA (now part of Philadelphia).According to my notes, the father of Richard Addams was John Addams, and the father of John Addams, was Richard Addams of Upper Heyford, England.
Please contact me if I can be of help to you. I don't have a great deal, but always glad to share.