Just a thought - have you searched the Nantmel registers for a christening of George W? If you haven't I think that would be a good idea. It would also be worth checking for a school admission. The school records may be at the Archives or still at the school if it's still in existence. It's easier if they are at the Archives unless you know someone to do with the school as schools are busy places and do not have the time to cope (generally ) with family history enquiries.
Hilary
Ed Officer