`::::::::::You go wrong as soon as you say ``unless it is documented in some way with names, dates and places``. That's not how Wikipedia works, and we are expressedly forbidden from doing that by Wikipedia:No original research. Further, it is not even necessary to have those things to accept what someone says about their ancestry—only, we have to accurately report that they said this, not that they are what they said. Of course, if we have no source for them saying it, we can't even say that much. This is actually a really straight-forward case as far as the policy is concerned. —     `