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.

Gohebiaeth a phapurau, 1985-1994, yn ymdrin â dathlu Gŵyl Owain Glyndŵr/Correspondence and papers, 1985-1994, relating to the celebration of Owain Glyndŵr's Day.

Material in the hands of Jonathan Reynolds and Llywarch Reynolds relating to eisteddfodau, including a draft of an essay written for the Caernarvon eisteddfod, 1887, entitled 'Cronicl Eisteddfodawl ...', and extracts from a prize essay of T[homas] E[van] Watkins ('Ynyr Gwent') entitled 'Hanes yr Eisteddfodau o'u Cychwyniad cyntefig hyd yn bresenol', 1868.