Research notes of Rev. Nefydd Hughes Cadfan for his M.A. thesis on the History and literature, beginnings and development of the Welsh Colony in Patagonia and a letter from Nefydd Hughes Cadfan to Derwyn Jones, former librarian of the University of Wales Bangor, 1967.
Also, a Welsh essay, Essential Conditions of Peace, by Rev. R. R. Jones of Treuddyn, entered for competition at the 1929 National Eisteddfod in Denbigh.