Yeah, that's all quite interesting (I read it), but it doesn't actually quite answer my question. I see that my Penguin English Dictionary gives, as a decidedly unsatisfactory definition, “a native or inhabitant of Liverpool” (which is already clearly lazy, because you could be an inhabitant of Liverpool and be from Surrey!). Does that mean, therefore, that Birkenheaders are not scousers, since they're from over the river? What do they themselves think?
It also seems a bit generous, incidentally, to take Ellesmere Port itself to be part of “greater Birkenhead” (as the Wiki article indicates). I wonder if the good denizens of Ellesmere Port see it that way. I'm aware that it may be administratively considered part of Birkenhead, but what bureaucrats and civil servants decide is sometimes a far cry from where people consider that they are.
Any info on Joe himself? Did he think of himself as scouse?
Incidentally, since we're in the Wirral, here's a useless detail, which interests me, anyway: the poet of the mediæval poem Sir Gawain and the Green Knight is thought to have been from the Wirral. They situate him there by virtue the dialect of the poem. It's wonderful stuff. The descriptions of landscape make it sound really, really wild at the time. It was also known as a hideout for brigands and generally lawless men. (Cannot be understood without notes and a pretty thorough glossary, incidentally — it's a long way from our English).