Soon after it reached Llanwrtyd, there were signs of a movement at Llangammarch, particularly in the Sunday School. But it was during a sermon by Thomas Elias once more that the revival broke out in earnest. In the months that followed about 104 were added to the church, and it was necessary, in the years following, for the chapel building to be enlarged.
MC, iii, p. 341 and Williams, Hymnau Thomas Elias, p. 26.
With thanks to Geraint Jones.