There have been Three (to my knowledge) copies of my "Good Morning Captain" (muleskinner Blues) Sheb Wooley, The Fendermen and Dolly Parton. Muleskinner Blues is a folk song, and as such belongs to all. My reord was a complete departure from the hitherto traditional renditions like, Jimmy Rogers and Bill Monroe. it also included new lyrics.
Am I miffed? At first, yes. But not anymore, it is, after all flattery to have such heavy hitters copy my work, and, my rendition was only a new way to sing an old song.
Everyone (that I've heard in recent years) sings it my way, now. That indeed is flattery. "Good Morning Captain" TETRA 4450, got me into the "Rockabilly Hall of Fame". I never expected to get anything (monetarily) out of it anyway, so "good luck to all"

Jody Gibson
(the Crank)