- NLW MS 9659D.
- Ffeil
- 1869-1871, 1924-1930.
Letters addressed to Richard Griffith ('Carneddog') by Elizeus Williams ('Eifion Wyn'), 1924-1928; Walter S. Jones, ('Gwallter Llyfnwy'), Llanllyfni, 1928-1930; and Ellen Closs, Nant Peris; and letters from Henry Owen, Middle Granville, U.S.A., 1869-1871, to William Williams, Gwastad Annas.