Well, just those twelve people could give you a whole lot to work with. E.g. you could take Jimmie Rodgers blues stanzas and arrange them in a different order and perform them a la Furry Lewis (and Jimmie and Furry apparently had similar influences there).

The lyrics to "The Rising Sun Dance Hall" (which is "House Of The Rising Sun") were published by Robert Gordon in 1925 in _Adventure_ magazine, and Clarence Ashley said he learned the melody of his "Rising Sun Blues" (which is "House Of The Rising Sun") from his grandfather Enoch Ashley, who died in 1923. So stick those together?