Marian. 'Efengyl tangnefedd'. Endorsed: '1920?',
266/1-2. Gwilym Thomas copies. [C]. 266/3. Evan Thomas copy. [D]. 266/4. MS music sheet containing draft and complete copy. Autograph. [D]. 266/5-9. Five autograph copies. Music only. Some endorsed with drafts of other works. 266/10-11. Sol-fa copies. Music only. [D]. 266/12. Rough draft of soprano part. Music only. [D].
Gwladys. 'Wedi oesoedd maith o d'wyllwch',
268/1. Gwilym Thomas copy. [C]. 268/2-3. Autograph copies. [D]. 268/4-6. Autograph copies. Music only. Endorsed with rough drafts. [D]. 268/7. MS music folio containing music only of Gwladys. ?autograph, and ?a Gwilym Thomas copy of 'A loving wish, a heart felt prayer'. [D]. 268/8. Rough draft. [D].
Ffynnon. 'Blessed are the pure in heart',
272/1. Autograph copy. [D]. 272/2. Gwilym Thomas copy. [C].
Ellen. 'Nac wyled teulu Duw'. Composed in memory of Mrs Edward Lewis of Port Talbot,
274/1-3. Autograph copies. Music only. [D]. 274/4. Printed copy. Score and Sol-fa. [C].
Gwynfor. 'O dragwyddol Graig yr Oesoedd'. (Dafydd William),
277/1-3. Autograph copies. [D]. 277/4-6. Gwilym Thomas copies. [C]. 277/7. Printed sol-fa copy. [C].
'Dof fel yr wyf'. (Tr. by Eliza Evans of English words by Charlotte Elliot),
287/1-2. Gwilym Thomas copies. [C]. 287/3. Two folios containing autograph copy and drafts of other works. [D].
Arwel. 'Y dydd sy'n darfod'. (John Lewis). Er cof am y Parch. T. Arwel Hughes,
288/1. Gwilym Thomas copy. [C]. 288/2. Autograph copy. [D]. 288/3. Autograph copy. Music only. [D].
'Dy garu Di, O Dduw', Gwilym Thomas copy. [C],
'Ar lan Iorddonen ddofn'. Gwilym Thomas copy. [C],
At Orsedd Gras. Gwilym Thomas copy. Music only. [C],
Sol-fa copy of an unidentified hymn. [D],
'Tra'r byd yn ei ddagrau'. (Parch. J. Owen Jones. 'Hyfreithon '),
318/1-3. Gwilym Thomas copies. [C]. 318/4. Gwilym Thomas copies. [D]. 318/5. Autograph copy. [D]. 318/6. Music only. [D].
Carol Nadolig. 'Os na chawn weled blodau'. (Elfed),
321/1-4. Gwilym Thomas copies. [C]. 321/5-6. Gwilym Thomas copies. [D]. 321/7. Gwilym Thomas copies. Sol-fa. [D]. 321/8-9. Autograph copies. [D]. 321/10. Draft. Incomplete. [D]. 321/11-24. Fourteen sol-fa copies. [C]. 321/25-28. Four sol-fa copies. [D].
Letter from W. Morris, Secretary, Bethesda Congregational Church, [Briton Ferry]. Re the engaging of Afan as organist and choirmaster of the church.
Post card.
Endorsed with religious notes. Welsh.
Letter from Caradog Roberts, Rhosllannerchrugog. Asks Afan to send a copy of Spes to H. Elfed Lewis,
Post card.