Bit of a different angle. My Mum used to joke that my Dad was like
royalty, having two birthdays (I should explain that for reasons I
forget the Queen has both a real and an "official" birthday).
I think I did once find two birth certificates, when I was a kid,
although unfortunately I've now only got one of them. It gives my Dad's
birthplace as Nottingham, and I know he did spend his childhood there,
but I also remember that on occasion he talked of being born in London.
Bit of a mystery man, my father oleh b'shalom!

Charles Pottins