William Lewis
Ty mawr, LlanbedrTynycelyn, Llanbedr (1901)
| 1895–1904 | owner Cwm Mawr No. 1 | 1896 | owner Caerwych copper mine, Llandecwyn | 1901–1903 | owner Coed and Lletty Walter |
| 1895–1904 | owner Cwm Mawr No. 1 | 1896 | owner Caerwych copper mine, Llandecwyn | 1901–1903 | owner Coed and Lletty Walter |