I've always thought that despite what Sir Macca says it was a subconcious choice. He probably didn't know he'd seen it but my guess was that his brian stored it away somewhere and when he thought of a name it just popped in there - of course we will never be able to prove it .

Is is really so suprising though that in a Liverpool graveyard we have a Rigby and a McKenzie close to each other? They are two very common Irish names and I don't find it co-incidental at all that they were there. It's like finding a MacDonald owning a farm in Scotland - probably not very hard.