Jimmy in the Swamp
Jam
Square tune with two parts in the key of G. Second part starts on Em.
The tune is also called "Little Jimmy in the Swamp." Adam Hurt [non-video on utoob].
Old recording of Bob Walters [mp3 player at Slippery Hill] and a modern rendition [utoob].
John Hartford plays it fast [non-video on utoob]. Transcription here [pdf].
The Root Diggers [reverbnation]. Medley alert!
Creative fiddler Roger Netherton [soundcloud].