Two volumes entitled 'Hen Gofion. Yr Ysgrepan neu Wyau Nythau Nathan', being a collection of autobiographical and other material compiled by Nathan Dyfed. The volumes include, in addition to the autobiographical material, notes and reminiscences relating to Glamorgan, its people and customs, a vocabulary of the Dyfed dialect, notes on 'eisteddfodau' mainly in Glamorgan, 1831-1888, an account of friendly societies in the Merthyr Tydfil district, poetry by Nathan Dyfed and others, a copy of Gwallteriana: sef y traethawd buddugol gan ... Walter Davies ... ar ansoddau gwahanol ddosbarthau barddonol Caerfyrddin a Morganwg ... Cyfieithiedig gan Jonathan Reynolds ... (Treherbert, 1879), etc.

Poetry and essays written by John Jones ('Gwalch'), Aberaman, mainly for 'eisteddfodau' in Glamorgan and Monmouthshire.

Administrative record files kept by Peter Reynolds that relate to his compositions, competition entries and contractual work. In addition, administrative papers for his work as Artistic Director for the P.M. Music Ensemble and workshops, the Lower Machen Festival and papers of Cardiff Arts Marketing among others, 1968-2016.