Every once in a while Art Thieme joins a thread with an interesting anecdote about rediscovered artists. There was one about Roscoe Holcomb in the recent thread of that name. I remember one or two about Big Joe Williams.(I hope I haven't stuck my foot in my mouth by not knowing there is a well known book by Art on this very subject.) As the title of the thread says, Art. Why don't you gather it all together.
Murray