The marriage was at Rhosllanerchrugog, not far from Ruabon.
There is this baptism there:
https://search.findmypast.co.uk/reco...F879251940%2F1
First name(s) David
Last name Jones
Birth year 1862
Birth date ? ? 1862
Baptism year 1862
Baptism date 13 Jul 1862
Place Rhosllanerchrugog
County Denbighshire
Country Wales
Father's first name(s) William
Mother's first name(s) Sarah
Page 32
Record set Denbighshire Baptisms