Jo, in the profile you linked to, you have a Research Note saying Ezra is "linked" to two other people. How so? The note doesn't indicate that the two have profiles, or define their relationship, but it does give birth and death dates. And the wording seems to imply they could have been married and been the parents, but that doesn't seem possible if Mary died years before either David or Ezra was born. Where does all that come from? Wherever it came from would be a source, although it may not be a very valid or credible one. But if there is something out there in the woods that leads you to believe this was a real person, you can say that is your source, and you can explain any doubts you have about it in the bio. If it all just seems like fantasy-land, and it bothers you, you could just merge the profile away.