Hi there, I'd previously written in my description from memory of being in Tregeiriog that I'd seen a Baptist church in the village, but as you had earlier pointed out, and as I was further researching I also found out that it was or is a CM church. On the 1901 census you pointed out that there was a Wesleyan Chapel, with the Smithy sitting in-between that & the CM church. Unless it was a new Smithy recently converted it could well be one in the same as the one vacated by Thomas Isaac in 1854 at the event of his early death. As far as I can guesstimate his father Edward ran it from at least 1841 & earliest mention of him being a blacksmith was in 1824, of Gilfach, he was 48 yrs old that year when his last son was born.
R