Hello Gofarby
Welcome to Rootschat!
Mike John's monfamilies is a fantastic resource isn't it? I found the marriage of my George Francis and his wife Cecilia Rogers on there some time ago. They married in LLanfrechfa on 23 April 1825, and both give their birthplace as Llanfrechfa on census returns. It appears that George was born around 1804, and Cecilia around 1806, but neither were baptised there or anywhere else in the area that I have found.
They had at least ten children - no baptisms for any of them, or definite civil registrations for the youngest ones. Their youngest daughter Mary married in a baptist church in 1864, into my husband's family who definitely were not non conformist. I think therefore that George and Cecilia must have been, especially as there are many marriages in Llanfrechfa around that time of members of the Francis and Rogers families who were not baptised there.
George and his sons were all tinmen - I think a lot of them were non conformist and the records (if any) don't seem to have survived. Unfortunately I don't know their origins, or how if at all they are related to your family.
Anne