Cyfyngwch eich canlyniadau yn ôl:
- Pob un
- Payne, Henry Thomas, 1759 or 60-1832, 2 canlyniadau
- Johnes, Thomas, 1748-1816, 1 canlyniadau
- Evans, Evan, 1731-1788, 1 canlyniadau
- Hafod Estate (Ceredigion, Wales), 1 canlyniadau
- Payne, Thomas, Rev., fl. 1757, 1 canlyniadau
- Richards, George, 1767-1837, 1 canlyniadau
- Geddes, Alexander, 1737-1802, 1 canlyniadau
- Warton, Thomas, 1728-1790, 1 canlyniadau
- Clayton, Robert, 1695-1758, 1 canlyniadau
- Pob un
- Aberystwyth (Wales), 1 canlyniadau
- Llanbedr (Crickhowell, Wales), 1 canlyniadau
- Cardiganshire (Wales) -- Description and travel, 1 canlyniadau
- Breconshire (Wales) -- Description and travel, 1 canlyniadau
- Copper mines and mining -- Wales -- Amlwch, 1 canlyniadau
- Parys Mountain (Wales), 1 canlyniadau