I've no idea but the site reckons that everything is documented which is good enough for me.More than can be said for the books that appear. Where's their documentation or proof that what they've written is Kosher ?
Lookout, THIS, on your part, would seem to be a change of stance. I distinctly recall that you once said you would rather get your information from books and web sites than rely on the documentation available here. I, on the other hand, FREQUENTLY challenge the information given by authors who knew NONE of the family and write the "truth" years after the event.
As for THE site, they MAY say that everything THEY say is documented but without proof of it HOW are we supposed to know? And you reckon YOU challenge everything?