Cyfyngwch eich canlyniadau yn ôl:
- Pob un
- National Museum of Wales., 1 canlyniadau
- National Library of Wales., 1 canlyniadau
- Eisteddfod Genedlaethol Cymru., 1 canlyniadau
- National Museum of Wales -- Records and correspondence, 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
- Diphwys Slate Quarry Company (Blaenau Ffestiniog, Wales), 1 canlyniadau
