Cyfyngwch eich canlyniadau yn ôl:
- Pob un
- National Library of Wales., 2 canlyniadau
- National Museum of Wales., 1 canlyniadau
- Eisteddfod Genedlaethol Cymru., 1 canlyniadau
- National Museum of Wales -- Records and correspondence, 1 canlyniadau
- National Library of Wales -- Archives, 1 canlyniadau
- University of Wales., 1 canlyniadau
- Diphwys Slate Quarry Company -- Records and correspondence, 1 canlyniadau
- Cardiff Medical Society. London Committee -- Records and correspondence, 1 canlyniadau
- University of Wales. Board of Celtic Studies -- Archives, 1 canlyniadau
- Vincent Evans Testimonial Fund -- Records and correspondence, 1 canlyniadau
- Pob un
- Art festivals -- Wales, 2 canlyniadau
- Education -- Wales., 2 canlyniadau
- Clippings (Books, newspapers, etc.), 1 canlyniadau
- Wales -- Social life and customs, 1 canlyniadau
- Wales -- History, 1 canlyniadau
- Welsh literature, 1 canlyniadau
- Wales, 1 canlyniadau
- Quarries and quarrying -- Wales -- Ffestiniog., 1 canlyniadau
