I have been told by a man who has sued Wikipedia and won, that it is a husband & wife who do their own research but because no one ever challenged them they were thought to be the last word. He won his case hands down. So I really believe very little of what they say. Smithsonian had an interview with a black woman around 100 years old and she showed how her mother would fold the quilt and lay it over the railings at a certain time of day. It was very interesting how they were told what food they could eat in the woods, where to find water. She had no reason to lie about these thing at her age.