Melva Janssen is compiling a work of all known descendants of Nicholas (and, no, no one has been able to decipher the surnames of Nicholas's three wives, all named Mary!). In your line, I don't think she has Margaret's descendants. She has posted on this forum so you could find her e-mail address here. I'm sure she would appreciate knowing details of your ancestry. Thanks for helping fill out one of the "holes"!