Dammit. I thought that Lonnie Donegan was from Glasgow (a piece of stupidity on my part when you consider his accent). This would have explained his recording of a couple of rebel songs. After all, these were recorded in the late 50's or early 60's. I mean, Kevin Barry, pretty ubiqitous, but "My only son, etc", that's pretty obscure. He didn't hear that in Woodford Green.