Glan Môr, 'Ar fin y tonnau saif y ddau', (Wil Ifan), Endorsed: '192?',
132/1. Autograph copy. [B]. 132/2. Gwilym Thomas copy, [D]. 132/3. Gwilym Thomas copy. [D]. 132/4. MS music book containing two rough drafts of Glan Môr and draft of another work. [B].
A Dream. 'I dreamed that we sat in a forest',
137/1. MS music book containing autograph copy. [E]. 137/2. MS music book containing drafts. [E].
Caingc Yr Hen Delynor, 'Ger llaw y llannerch werdd'. (Eifion Wyn),
140/1-3. Three autograph copies. [B]. 140/4-5. Two Gwilym Thomas copies. [D]. 140/6. Evan Thomas copy, endorsed 'Father's Copy. G.' [D]. 140/7. Copy, endorsed: 'L. J. Morris .... Neath'. [D]. 140/8. Words only. Gwilym Thomas copy. [D].
Ysbryd Y Robyn. 'Rhys foreu gaeafol'. (Nantlais),
144/1. Autograph copy. [E]. 144/2. First 18 bars. Autograph. [E]. 144/3. First 18 bars. [E]. 144/4. Sheet containing rough drafts. [E].
Y Sipsi. 'Hei-ho, Hei-di-ho'. (Crwys),
146/1. Autograph copy. [B]. 146/2. Autograph copy. [D]. 146/3. Gwilym Thomas copy. [D].
Cells. 'I've a head like a concertina'. (Kipling). Autograph. [D],
'I seek and desire'. Gwilym Thomas copy. [D],
'The poor man's sins are glaring'. Autograph, [E],
'Paid â goddef i estroniaid',
'Paid â goddef i estroniaid'. 179/1. Autograph copy. [E]. 179/2. Rough draft. Incomplete. [D]. 179/3. ?Vocal duet. Solo parts only. ?A different tune. Gwilym Thomas copy. [D].
Suo Gân. 'Cysged O'. (Wil Ifan),
Suo Gân. 'Cysged O'. (Wil Ifan). 182/1. Autograph copy. [A]. 182/2. Autograph copy. [B]. 182/3. Printed copy. (OUP). First proof from Henderson and Spalding. [C]. 182/4. Arrangement for voice and orchestra. Gwilym Thomas copy. [B]. 182/5. Rough draft of arrangement for orchestra. [B]. 182/6. Rough draft of pf. and vocal parts. [A]. 182/7. Set of orchestral parts. [B]. 182/8. Words only. [A].
Fy ? Men Song. Words not included. Autograph. [E],
MS music book containing drafts of Cymru Fydd (Joseph Parry), and Leisa Fach. [D],
Cân y Ffynnon, Llanwrtyd. 'Dydd Llun, dydd Mawrth, dydd Mercher'. Arrangement ?for four voices, by Afan. 197/1. Autograph copy. Endorsed with faded pencil copy of the words and with notes on 'Schubert'. [E]. 197/2. Gwilym Thomas copy. Words not included. [D].
MS music book containing Sweetest Jean [No, 114], Inclusions [No, 92 ], N'ad Fi'n Angof [No, 933. Gwilym Thomas copies. [D].
MS music book containing rough drafts of 'Rise my love' and other works. [D],
The Grenadier's Goodbye. 'Here they halted'. [Sir Henry Newbolt]. Arranged for three voices,
217/1-2. Two Gwilym Thomas copies. [D]. 217/3-4. Two Evan Thomas copies. [D]. 217/5. Gwilym Thomas copy. Sol-fa. [D]. 217/6. A further sol-fa copy. [D].
'Lamb of God, I look to Thee'. (C. Wesley). SSA,
218/1. Autograph copy. [E]. 218/2. Rough draft. [E].
God Save the People. 'When wilt thou save the people?' (Ebenezer Elliot). TTBB,
220/1. Autograph copy. [D]. 220/2. Gwilym Thomas copy. [D]. 220/3. Gwilym Thomas copy. Words not included. [D]. 220/4-8. Five MS music sheets containing rough drafts. [D].
MS music book containing God Save the People, 'Ar dy wên yr wyf yn byw', Love is so Strong a ...,
MS music book containing God Save the People, 'Ar dy wên yr wyf yn byw', Love is so Strong a Thing, 'Tra fo cariad', 'O, if my love offended me'. Autograph. [D].