- A1/17.
- Ffeil
- 1985.
Rhan oKyffin Williams Archive
Includes letters from Alwina H. Thomas (2), Tegai Roberts (2), Luned Roberts de González (2), Brian Flowers, Robin Stemp (4), Jonah Jones, Robert W. Steel (2), Peter Jones (2), Colin See-Paynton, Henry Paget (Marquess of Anglesey, 4), Miriam Hughes, R. Geraint Gruffydd (2), Richard Hanbury-Tenison (2), Delyth Jones, Roger de Grey, Eiluned Rees (2), Bernard Dunstan (3), Diana Armfield, John Ward, and Anna Haycraft.