Ballads, monologues and cantatas,
- 74-78.
- Cyfres
- 1912-1923.
Dangos 12 canlyniad
Disgrifiad archifol- 215-227.
- Cyfres
- 1899-1918.
- 315-321.
- Cyfres
- [?c.1900]-1927.
Miscellaneous letters, mainly relating to Afan and family,
- 407-450.
- Cyfres
- 1883-1949.
- 451-497.
- Cyfres
- 1883-c.1944.
- 79-100.
- Cyfres
- 1890-1911.
With pianoforte accompaniment unless otherwise stated.
- 101-106.
- Cyfres
- [1881x1928].
A group of soprano solos, several dedicated to Sappho, c.1911.
- 107-214.
- Cyfres
- 1911-1928.
- 228-234.
- Cyfres
- 1904-1923.
- 322-370.
- Cyfres
- 1901-1928.
- 235-314.
- Cyfres
- 1901-1928.
Including hymns which do not appear in 'Eirin Afan 1 and 2' (249-314).
- 371-406.
- Cyfres
- 1903-1928.
These letters are written to Wil Ifan except where otherwise stated. All the letters to Wil Ifan are in Welsh.