DCB:
You noted some of the same things I picked up on late last night. The scan I was sent of the burial registrations finally came through where I could download it. When I looked at it I saw Ty Newydd represented three times:
Margaret Edwards, age 33, November 1822
Margaret Roberts, age 81, 31 March 1823
John Roberts, (presumably 80, although I can still see a possibility of 60), 26 May 1826
Furthermore, EVERY REGISTRATION ON BOTH PAGES were signed by the same Vicar - Edward Hughes - who married John Daniel and Jane Roberts.
Some additional thoughts:
1) If John Roberts on this page is 80 he cannot be of the line that my Jane came from because they had no such aged John Roberts in their tree, so you could throw these Roberts out as dead-ends, and there would be no connection to Ty Newydd.
2) Given the known birth year of my Jane Roberts (1786), this John (if 80) and the Margaret from the same household (81) at time of death, means that both would have been in their early 40's when they had Jane Roberts. This is certainly possible, but I would think more likely in a family were there are multiple children and the couple just kept having kids.
3) The bottom line is that there in no way HAS TO BE a connection between the Jane Roberts baptized 27 August 1786 and the Roberts couple living at Ty Newydd into the early 1820s. In a way, I'm kind of disavowing the Ty Newydd connection, but am still very interested in finding out more about the Jane noted in 1786. That name and that year are a match for my ancestor, and I would like to expand upon that lead if possible.
4) One thing's for sure, searching for a Roberts in this area is an exhaustive process, as nearly 9 out of every 10 postings on this thread involve someone with the last name Roberts