Hallo again
Yes, I've seen the 1841 census for Dyllgoedganol and that will be our James. It would quite interesting as a side issue to find out about the pauper Margaret Lodwick. A Margaret Lodwick of the same birth year was buried in Brongwyn, Ceredigion a few years later.
I don't know anything at the moment about Dyllgoedganol but will consult my cousin who is a fount of knowledge and see if he knows something. He, like us, is very frustrated by the Maddox family prior to 1724.
Something he came up with this week was the use of the patronymic in Wales and I've since found that Rachel Maddox was baptised as Rachel James (her father being James Maddox). I've tried looking up births for just "James", in the hope that a father called Maddox/Maddocks/Madock etc. might come up but failed so far. Its quite possible that James was baptised as James John, for example, but not having his father's first name is a huge stumbling block.
I've trawled through any number of Maddocks in Carmarthenshire and found different branches who may or may not have links to me. I've found the following who might have some link, being in Llanelli:
Jacobus Maddock (buried 28 Aug 1719 St Elli)
Johannes Maddocks (buried 10 July 1723 St Elli)
Griffith Maddock (Born 1680 and buried 18 November 1750 St Elli)
That last one seems like a possibility if we could only find out more.