One of the witnesses to the marriage in 1831 was William Jeremiah.
This family is shown in the 1841 and 1851 Censuses as living in Penfilia
Cottage. In the first John is described as "Joiner" and in the second as
"Carpenter". Both John and his wife are recorded as having been born in
Llangyfelach.
Probate granted for the Will of John ("joiner, of Penvilia") at
Carmarthen on 23 July 1867 to William Jeremiah, "joiner and son".