Cyfyngwch eich canlyniadau yn ôl:
- Pob un
- Davies, J. Glyn (John Glyn), 1870-1953, 1 canlyniadau
- Pwllfanogl (Llanfair Pwllgwyngyll, Wales : Dwelling), 1 canlyniadau
- Britannia Slate Works (Llanedwen, Wales), 1 canlyniadau
- Williams, W. Llewelyn (William Llewelyn), 1867-1922, 1 canlyniadau
- Daniel, David R. (David Robert), 1859-1931 -- Correspondence, 1 canlyniadau
- Davies, John, 1804-1884, 1 canlyniadau
- Humphreys, John Lloyd -- Correspondence, 1 canlyniadau
- Roberts, J. Jones, 1 canlyniadau
- Humphreys, David Lloyd, 1 canlyniadau
- Humphreys, John Lloyd, 1 canlyniadau
- Pob un
- Slate industry -- Wales, North., 2 canlyniadau
- Wales -- Politics and government -- 20th century, 1 canlyniadau
- Shipwrecks -- Wales -- Menai Strait, 1 canlyniadau
- World War, 1914-1918, 1 canlyniadau
- Slate industry -- Employees -- Wales, North., 1 canlyniadau
- Birds -- Wales -- Anglesey., 1 canlyniadau
- Welsh language -- Dialects., 1 canlyniadau
- Welsh language., 1 canlyniadau
