Just finished watching and it is fascinating!
More should see this. Wonderful that they made this while some of the surviving Med. Show workers were still alive.
Many a magician got work on medicine shows, a generation or more ago. THE BILLBOARD magazine had a regular page devoted to them , just as it did for vaudeville, burlesque, etc.
While elements of the show were certainly dated and out of place today. It is valuable that these film makers preserved, how it was, rather than a cleaned up/sanitized version.