Born c1796 in Swansea, the father of William Thomas II (51C, A).
| 1833 | 22 Oct. Noted as a potter when his son was apprenticed, aged 16 years, to J.D. Pountney (A, Ao). |
| 1834 & 35 | Temple parish (TPR). |
| 1841 | Avon Street, Temple parish (P). |
| 1841 | Avon Street, Temple parish (45) living with his wife Mary (45) not born in Bristol and children (41C). |
| 1850 | 12 Mar. Noted as a potter when his daughter Margaret of St Philip’s parish married John Beacham (PPR). |
| 1850 | 25 Jun. Noted as a potter when his son John Thomas, a musician, of St Philip’s parish married Mary Thomas (PPR). |
| 1851 | Potter handler, 26 Avon Street, Temple parish (56), living with his wife Mary (56) born in Swansea (61C). |
| 1861 | 20 Great Avon Street, Temple parish (67), living with his wife Mary (66) (61C). |
| Children: William, born c1817 (Ao), Margaret, born c1822, not in Bristol (41C), Ann, born c1828, not in Bristol (41C), John, born 1 Nov 1824, bapt 2 Nov 1834 (TPR), Eliza Selina, bapt 27 Dec 1835 (TPR) |