- BMSS/19565-19588.
- Ffeil
- 1918-1922.
Rhan oR. Silyn Roberts Papers,
Correspondence between R. Silyn Roberts and various recipients, including Sir E. Vincent Evans, London; J.R. Jones, Trawsfynydd; Captain Harri Williams, London and L.S. Merrifield, London regarding memorial to Hedd Wyn. Includes 2 postcards and a letter from Kelt Edwards to R. Silyn Roberts.