Hyah, Mang. Hudson? Checking Bob Dawson's book, I see they were recorded in Derby and Cheshire, back in the late eighties. So, ye in the right stretch of the country, with Brum.
Patterson, he has, pretty much 'always and for ever', around Nottingham and Yorkshire.
Heinstein he doesn't mention. I wouldn't like to hazard a guess about them. But, anyway, there's something to kick it off with. As is the way with this place, someone's bound to crop up sooner or later, able to provide some much closer to source information.
Incidentally; I know exactly what ye mean, about the older folk vehemently denying their own heritage. I suspect it's a product of the times they lived through
