In Barack Obama's ancestry, there is a couple William Terrell x Susannah Waters that is part of a Terrell line that connects the president to the English noble Tyrrell family, who are also ancestors of mine.
This Terrell - Tyrrell line is not on WikiTree yet, but I'm trying to complete it using verifiable genealogies on other sites, parts of which I have in my local database in Gramps already.
While trying to merge adopted Terrell's, which may all be descendants of the Tyrrell's mentioned above, I found several instances of the couple mentioned above, where sometimes the wife is Martha Susanna Waters. Where enough parameters like parents matched, I actually performed the matches where possible.
Some days later I found that some suggested matches showed similar names for (grand)parents and children, and on closer inspection I found that something must have gone wrong somewhere, because William Terrell and Susannah Waters show up in two different branches of a tree, which can happen because of inbreeding, but which is weird in this particular tree, because they are two generations apart.
I have no idea whether I caused this particular anomality myself, but I sure feel like needing help to correct it. Any ideas?