I first learned of Roy Smeck through his many stringed instrument endorsements, especially Harmony instruments.
Turns out, Roy was one of the first musicians ever recorded when audio married video back in the 1920's.
Here is a video of Roy playing in a short called "His Pastimes" back in 1926. He starts on acoustic Hawaiian guitar and moves through Uke and Banjo before finishing the set. Pretty interesting stuff.
You can read more about Roy here: