Cyfyngwch eich canlyniadau yn ôl:
- Pob un
- Jones, Thomas, 1756-1820., 1 canlyniadau
- Owen, Morfydd, 1891-1918 -- Archives, 1 canlyniadau
- Jones, Kitty Idwal, 1898-1984 -- Archives, 1 canlyniadau
- Owen, Morfydd, 1891-1918., 1 canlyniadau
- Jones, Idwal, 1899-1966., 1 canlyniadau
- White, Theodore, 1912- -- Archives, 1 canlyniadau
- Clive, Robert Clive, Baron, 1725-1774 -- Archives, 1 canlyniadau
- Pob un
- India, 3 canlyniadau
- Aberystwyth (Wales), 1 canlyniadau
- United States, 1 canlyniadau
- Missionaries -- India., 1 canlyniadau
- Chemistry -- Research -- Wales -- Aberystwyth., 1 canlyniadau
- Rhondda (Wales) -- History -- 19th century, 1 canlyniadau
- Rhondda (Wales) -- History -- 20th century, 1 canlyniadau
- Chemistry, Technical -- India., 1 canlyniadau