In early 2018 we made a series of posts on how to use the multiple “Shared Matches” in AncestryDNA to narrow down the DNA line that connects you to them. The challenge was that often they have no trees, or small trees that don’t come anywhere close to matching your (much more complete!) tree.
This strategy was a way to use mirror trees to match them to themselves, which should indicate a Most Recent Common Ancestor for them, and in all likelihood to be your MCRA as well. For this series we broke down a large set of matches (5000+) to Felice’s mother, to try and establish her first DNA link outside of the immediate family.
There were all of the challenges we all face with African American genealogy (fewer family histories to draw off of, smaller trees, difficulty with 3x/4xGGP’s due to the “1870 Wall”, etc.), and in this series we found the MCRA…but we failed to find the link between them and our family. However, about a year later we broke through that wall, and we’ll be following up on that shortly. In the meantime, here’s the complete series in one page: