- NLW MS 23521D.
- Ffeil
- 1845-1874.
Midsummer Quarter account, 1845, of Trelogan lead mine, co. Flint; and financial and other papers relating to the Talar-goch Mining Company (Limited), Dyserth, co. Flint, 1864-74, mostly of Cornelius Davies, Dorothea Slate Quarries, Caernarfon, as shareholder.