- NLW MS 23341A.
- File
- [c. 1928]
A notebook compiled by Geraint Dyfnallt Owen, [c. 1928], containing notes on Sir John Norris and the Breton campaign of 1591 (ff. 43 verso-61 verso, inverted text), and on the Breton folklorist Count Théodore Hersart de la Villemarqué (ff. 2-27).