- Llyfr ffoto 4689.
- Ffeil
- 1968-1969.
Rhan oKyffin Williams Archive
297 Mounted 35mm Kodak transparencies taken in Patagonia following his award of a Winston Churchill fellowship . They include views in Welsh settlements in Patagonia such as Trelew, Gaiman, Drofa Dulog, Trevelin and Esquel.