Dylan may well have learned his version of the song from Von Schmidt, although Lipscomb claims that he took it from his playing following meetings they had whilst playing on the same bill at Berkeley.

Lipscomb's and Dylan's version are different and I have no doubt that Lipscomb learned the basis of his version back in the 1920s, however, following the success of Dylan, he started to include one of Dylan's verses in his version.

Brian