Who Were the Parents of John Richman (1788-1867) of Hilperton, Wiltshire? - Part 3

I wrote Part I of this series four weeks ago, and have made some progress in sorting out all of the Richman data available in the area around Hilperton, Wiltshire in the 1700 to 1900 time frame.  In Part I, I noted that there were a number of families in the Hilperton area that were having children in the 1775 to 1800 time frame that might include my 3rd great-grandfather John Richman (1788-1867), who is my "end-of-line" ancestor at this time.  

1)  Can DNA matches help me find the parents of my John Richman?  Perhaps!  It Depends (I hear everyone saying this)?  I formulated a plan to "test" which of my candidate Richman families, if any, have descendants who are DNA Matches with me on AncestryDNA.  

2)  I wrote Part 2 of this series two weeks ago, and added my first candidate family for potential parents of my John Richman (1788-1867), being John Richman (1744-1808) and Mary Parsons (1750-1817) as the biological parents in my Ancestry Member Tree.  That generated 5 AncestryDNA ThruLines for DNA matches from those parents.  That is evidence that I am related to those DNA matches somehow, but it is not proof that those candidate parents are correct.

3)  Heartened by that find, I disconnected John and Mary (Parsons) Richman as the potential biological parents of my John Richman (1788-1867), and connected the second candidate potential parents - Joseph Richman (1749-1829) and Hannah Picture (1749-1832), who married in 1774 - as biological parents to my John Richman.  

With Joseph and Hannah (Mission) Richman as biological parents, I received these ThruLines for them:

The charts above tell me that I have no DNA matches with AncestryDNA ThruLines for these potential biological parents.  That doesn't mean that they are not John Richman's (1788-1867) parents - they might be -  but none of my DNA matches with an Ancestry Member Tree have claimed them as their ancestors.  Again, this is evidence that they are not John's parents, but it is not proof, and a coherent conclusion cannot be drawn about this hypothesis.

Joseph Richman (1749-1829) is the brother of John Richman (1745-1808), my first candidate potential biological parent, and I don't recall having ThruLines for their parents, Joseph Richman (1710-1761) and Elizabeth Rawlings (1712-????).  A second look indicates that there is one additional AncestryDNA ThruLine from them, but I knew that from the John Richman and Mary Parsons post.

4)  I will disconnect Joseph and Hannah (Mission) Richman as potential biological parents of my John Richman (1788-1867) and add the next candidate potential biological parents and report that in the next post of this series, and then the candidates after that also.

5)  Have you tried doing this "test" with potential ancestors who may be biological parents of your current "end-of-line" ancestors?  If so, how did it work out?

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