Hi Jim, thanks for your reply.
So this is not a permanent error, we can just say "Nah, it's meant to be like that!"?
And would you say that in these instances that would count as meaningful? It's not going to trigger an admin to come along and 'tidy' it or something?
I like the idea of being able to visualise where people were, spatially, as I am interested in these wider connections - the push and pull factors of how families not just individuals moved and clustered.
I've found mapping essential a number of times when tracking down renamed roads etc as addresses often need to fit the wider pattern of both the individual and wider family.
Thanks :)