At the beginning of The Pilgrim he says who he wrote it about. One of them was Billy Joe Shaver. “See him wasted on the sidewalk in his jacket and his jeans” is a perfect description of BJ.
I don’t see Johnny Cash in either of the two songs you mentioned. To Beat The Devil could have been Kris’ story. But it could have been about thousands of dreamers who tried their luck in Nashville.
I still like his songs but, wow! What a leftie!
Bump
Kris was a janitor at the studio and would show Cash his songs that was before Sunday Morning Coming Down. That would have been late 60's I guess in Cash wilder days.
I can't find that video either but I have seen the interview and it was Cash telling the story. They didn't meet in a bar but it was about him. The Junkie and the Juicehead was one Kris obviously did about himself.