Well TY very much for answering a question for me this morning. I have often wondered if any musician other than Richie Havens played the guitar tuned to the key of E. Now I know that Jimmie Rodgers once did.

Richie Havens 1969 Woodstock - Freedom



Please note both of their thumbs covering the neck of the guitar. I can't think of any other musicians who do that.

https://www.youtube.com/watch?v=tf1B9ktRCkg