Cyfyngwch eich canlyniadau yn ôl:
- Pob un
- Royal Commission on Ancient and Historical Monuments in Wales, 2 canlyniadau
- 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
- Pob un
- Politicians -- Wales -- Archives, 1 canlyniadau
- Art festivals -- Wales, 1 canlyniadau
- Education -- Wales, 1 canlyniadau
- Politics, Practical -- Wales -- 20th century., 1 canlyniadau
- Temperance -- Wales., 1 canlyniadau
- Agriculture -- Wales, 1 canlyniadau
- Archaeology -- Wales, 1 canlyniadau
- Quarries and quarrying -- Wales -- Ffestiniog., 1 canlyniadau
- Monasteries -- Wales -- Research., 1 canlyniadau
