You posted "I show Margaret Elizabeth Jarman (b. abt.1670) m. Edward Morgan. Edward died in 1718 and she evidently remarried a Rees David in 1719, Gwynedd, PA. She died in 1736 in Gwynedd, PA. And I have found references to her father, John Jarman, b.1664, Llangerig, Montgomeryshire, Wales, d. 14 Dec 1697, Radnor, PA. There are many John Jarmans however who bracket the dates and I haven't been able to prove him as her father."
I have several questions: 1) Where did you find that Edward died in 1718. There is an Edward Morgan and Elizabeth Morgan at Squire Boone's wedding in 1720 according to the Gwynedd Monthly Meeting notes. Of course, the Edward could be their son. I have Edward Senior dying in 1736.
2) Where did you find that she married a Rees David in 1719? Again, Elizabeth and Edward had a daughter Margaret which could be of marrying age about then.
3) That leads to my question about the name Margaret. I haven't seen this with respect to Edward Senior's wife. Where did you find that name.
4) And, lastly, of course, where did you obtain the name of John for the father?