Commiserations I have a John Smith too but not yours.
UK geography not being my forte I find google maps useful.
Put in both places and directions and hey presto.
Often the walking route is shorter.
Mine said about 80kms but there might be an historic place closer.
Start with the wedding and if there, with the witnesses and the trade of the groom if shown.
Are you lucky enough to have it by license then look for bonds and allegations?
See if it made the newspapers, her surname is distinctive enough for a quick check.
What were the kids names, if none were George you can probably rule him out as John's father.
Smith and the trade might turn up something. Maybe a son followed the dad's trade and maybe the grandfather's trade.
Not definitive but all pointers
Remember too not everything is online
and not everything on line is indexed or indexed properly.
I have gone back or forward thru on line registers
and found folk not indexed.
So it might be worth a stroll thru the Hambledon register.
Did he leave a will or did her relatives. Any hints there?
National Archives digitised records are free at the moment so its worth the odd punt.
Daft as it seems google "John Smith" "Elizabeth Rigden"
and any other delimiters and see what happens.
Some one might be coming form the other side so to speak.
Good luck
Regards
pH