Wales has always loved country music. Charlie Pride's voice was very like a Welsh tenor. Royston Jones could do that sort of stuff excellently.
The Welsh singer song/writer Amy Wadge did folk clubs. Though I would imagine her successes as a songwriter has made her - well a bit too prosperous to bother with pub gigs.

Speaking of the colonies. I used to work for an agent called John Wall. During the 1960's he had a folk club in Leeds (this was years before I ever set foot in that city, but he told me about it). The club was called the Nashville. And apparently both Johnny MacEvoy and Christy Moore used to do it quite regularly.
He told me the deal was that Christy used to dig his garden and do the gig for a fiver.