- NLW MS 13780i-iiC.
- [?early 20 cent.], [c. 1926] /
A volume containing notes by Philip Thomas on the history of Neath Abbey (ff. 1-11), including an English prose translation of 'Awdl foliant i Leision, abad Glyn Nedd' by Lewys Morganwg (ff. 3 verso-8) (NLW MS 13780iC). Also included is ...