- C4/3.
- Ffeil
- 1929-1989.
Rhan oThe Tŷ Cerdd Archive,
Papers including programmes of concerts in which he played the piano; papers relating to Welsh Teldisc including letters from Dafydd Iwan; press cuttings and papers relating to the Guild for the Promotion of Welsh Music; his funeral card, 1966; and letters sent to his widow Olwen Edwards.
Iwan, Dafydd, 1943-