Where are you going? = Ble'r wyt ti'n myned?,
Manuscript score of arrangement of 'Ble'r wyt ti'n myned?' (English words, Mary Ll. Davies), for unaccompanied mixed voices. Published Magor: Mansel Thomas Trust, Ref: MT058 [1998?].
Can you see my mother? = Dacw Mam yn dwad,
Manuscript score of an arrangement of 'Dacw Mam yn dwad' for mixed voices and piano. Published Magor: Mansel Thomas Trust, Ref: MT062 [1998?].
Incomplete photocopy of a manuscript score of 'Bugail yr hafod' (pp. 11-16 only), arranged for unaccompanied mixed voices and soloist.
Manuscript orchestral score (in nine sections, numbered 1, 2, 3/3a, 4/4a, 5, 6, 7, 8, 9) and orchestral parts score.
4 Hymns for evensong (7th June 1959),
Manuscript part scores of 'Hymns for evensong', arranged for a string quartet.
Manuscript part scores of 'St Peter', arranged for string quintet.
Manuscript full scores and string parts of 'Music for a family', for string quartet'. Published: Mansel Thomas Trust, Ref: MT272.
Manuscript full score of 'Yr hen erddygan', an arrangement for a quintet, together with parts for oboe, violin and viola (part for solo cello is wanting). Published: by Mansel Thomas Trust, Ref: MT121, under title of 'Welsh Traditional Melody Arrangements', five arrangements for Oboe, Violin, Viola, ‘Cello & Piano. (Oboe part transferable to Flute or Clarinet or Violin).
Going with Deio to Towyn (Wrth fynd efo Deio i Dowyn),
Manuscript full score of 'Going with Deio to Towyn' (also known as 'Wrth fynd efo Deio i Dowyn), an arrangement for a quintet, together with parts for oboe, violin, viola and cello. Published: by Mansel Thomas Trust, Ref: MT121, under title of 'Welsh Traditional Melody Arrangements', five arrangements for Oboe, Violin, Viola, ‘Cello & Piano.
Manuscript full score of 'Dance of the four clogs', an arrangement for a quintet, together with parts for piano, violins, viola and cello. This arrangement was compiled between 1939-1940. Published: by Mansel Thomas Trust, Ref: MT122, under title of 'Welsh Traditional Melody Arrangements', arranged for piano quintet – 2 Violins, Viola, ‘Cello & Piano.
Manuscript full score for 'Hela'r 'sgyfarnog', a traditional Welsh melody arrangement for trio. Full score and parts for cor anglais (2), viola and cello. Published: Mansel Thomas Trust, Ref: MT278.
Manuscript score of 'Y wlad well', music by R.S. Hughes. Orchestration by Mansel Thomas with full score and orchestral parts.
Manuscript score of the anthem 'O brynwr mawr y byd', by John Goss, with string orchestration by Mansel Thomas. Includes a full score and parts for strings.
Manuscript score of 'The crusaders', by D. Protheroe. Orchestration of a chorus for male choir by Mansel Thomas. Full score and orchestral parts.
Volume containing the full score of the cantata 'God is our hope and strength' words from the 46th Psalm, submitted as part of his B.Mus. degree from Durham University.
Manuscript sketches and drafts relating to his arrangement of 'The Lords Prayer'. Versions 'expressly for Denis Walker and the Llanwenarth Baptist chapel choir ....', 1981.
Manuscript sketches, drafts and text, relating to his arrangement of 'Psalm 14'.
Manuscript sketches of arrangements for carols comprising parts for strings, wind and brass. Pieces include: 'Hark the Herald', 'Away in a manger', 'O come all ye faithful', 'Once in Royal David City'. A second group of parts for strings: Carols for Colwinston Church (1961) arrangement for string quartet: 'Once in Royal David's city', Hark the Herald angels sing', 'The first nowell', While shepherds watch their flocks', O come all ye faithful', 'Away in a manger', 'Cwm Rhondda', 'O little town of Bethlehem'.
Manuscript orchestral and vocal scores and orchestral parts of 'Ding, dong merrily on high', [a 16th cent. French tune], arranged for mixed voices, Llandough, December 1961. Published Magor: Mansel Thomas Trust, Ref: MT091 [1998?].
Manuscript orchestral score (without words) and orchestral parts of 'Caneuon yr Wyl', being an arrangement of five carols. Published Magor: Mansel Thomas Trust, Ref: MT086 [1998?].