Thanks, Pete - that's very helpful. I've come across this kind of thing before. It's probably something to do with how districts were administered in the days when registration was first set up, & it's never been changed - historically interesting, but frustrating for present-day research!
When researching my late wife's family, all of whom lived in the Clayton/Great Horton part of Bradford, I found all BMDs were recorded as "North Bierley". This puzzled me, as I'd never heard of it when I lived in Bradford for 3 years. So I looked at an OS map. There's no such place as North Bierley! There IS a Bierley and an East Bierley - neither of which are anywhere near Clayton & Gt Horton! It's just a minor suburb, but is (or was) important to the registrars!
