'Bywyd a gwaith R. J. Derfel',
- NLW MS 23617E.
- Ffeil
- 1941 /
Rhan oPapurau O. Llew Owain
A typescript essay on the life and work of Robert Jones Derfel, for which Owain Llewelyn Owain was awarded a prize at the National Eisteddfod of Wales, Old Colwyn, 1941, under the pseudonym 'Cynfrig Hir'.
Owain Llewelyn Owain.