Cyfyngwch eich canlyniadau yn ôl:
- Pob un
- Sir John Rhŷs papers, 12 canlyniadau
- Dr J. Lloyd Williams Music MSS and Papers, 3 canlyniadau
- T. I. Ellis and Mari Ellis Papers, 2 canlyniadau
- D. E. Jenkins Manuscripts,, 2 canlyniadau
- Richard Bennett manuscripts, 2 canlyniadau
- Sir John Ballinger Papers, 2 canlyniadau
- Lord Davies of Llandinam Papers,, 1 canlyniadau
- O. M. Edwards Papers,, 1 canlyniadau
- George Eyre Evans manuscripts, 1 canlyniadau
- The Honourable Society of Cymmrodorion Records,, 1 canlyniadau
- Pob un
- Davies, J. H. (John Humphreys), 1871-1926, 1 canlyniadau
- Evans, J. Gwenogvryn (John Gwenogvryn), 1852-1930, 1 canlyniadau
- Williams, G. J. (Griffith John), 1854-1933, 1 canlyniadau
- Davies, T. Huws (Thomas Huws), 1882-1940., 1 canlyniadau
- Davies, Gwilym, 1879-1955, 1 canlyniadau
- Angus, J. Mortimer (John Mortimer), 1850-1945, 1 canlyniadau
- Rhys, Olwen., 1 canlyniadau
- O. M. Edwards, J. H. Davies and Henry Rowlands., 1 canlyniadau
- John Ballinger and others., 1 canlyniadau
- E. Stanton Roberts and others., 1 canlyniadau
- Pob un
- Davies, J. H. (John Humphreys), 1871-1926, 42 canlyniadau
- Anwyl, E. (Edward), 1866-1914., 8 canlyniadau
- Jones, D. Brynmor (David Brynmor), Sir, 1852-1921., 7 canlyniadau
- Owen, Edward, 1853-1943., 6 canlyniadau
- Sayce, A. H. (Archibald Henry), 1845-1933., 6 canlyniadau
- Morris, Lewis, 1833-1907, 5 canlyniadau
- Powel, Thomas, 1845-1922., 5 canlyniadau
- Palmer, Alfred Neobard, 5 canlyniadau
- Allen, J. Romilly (John Romilly), 1847-1907., 5 canlyniadau
- Reynolds, Llywarch, 1842-1916., 5 canlyniadau
- Pob un
- Wales -- Genealogy, 1 canlyniadau
- World War, 1914-1918, 1 canlyniadau
- Folklore -- Wales., 1 canlyniadau
- Authors, Welsh -- Wales -- Correspondence., 1 canlyniadau
- Wales -- History -- Research., 1 canlyniadau
- Montgomeryshire (Wales) -- Genealogy, 1 canlyniadau
- Sunday schools -- Wales -- Llanidloes, 1 canlyniadau
- Unitarianism., 1 canlyniadau
- Unitarians -- Correspondence., 1 canlyniadau
- Wills -- Wales -- Powys, 1 canlyniadau
- Pob un
- Welsh poetry -- 18th century, 2 canlyniadau
- Welsh poetry -- Early modern, 1550-1700, 1 canlyniadau
- Welsh poetry., 1 canlyniadau
- Welsh literature., 1 canlyniadau
- Manuscripts, Welsh., 1 canlyniadau
- Welsh poetry -- 1400-1550, 1 canlyniadau
- Welsh poetry -- 1100-1400, 1 canlyniadau
- Welsh poetry -- 19th century, 1 canlyniadau
- Welsh poetry, 1 canlyniadau
- Tune books, 1 canlyniadau
