Can't see how that latter one is particularly conservative, big or small C. No suggestion that he was supposed to be wrong on the slave issue. Just on banjos and such. I don't much like Puritans myself, but they aren't the same as conservatives, as King Charles I could testify.

Reminds me of the Ould Orange Flute - now I wonder if that's a humorous rewrite of an original like that...

As for the first one, I'm sure plenty of strike-busting songs must have been commissioned by the bosses. The thing is, did they ever pass into the oral tradition?