Part of Mansel Thomas Music Manuscripts,
Manuscript score of the old Welsh carol 'Trymder' (words, Robert Davies (Bardd Nantglyn)), arranged for unaccompanied mixed voices. Published Magor: Mansel Thomas Trust, Ref: MT087 [1998?].
Ar gyfer heddiw'r bore = For this early morn,
Part of Mansel Thomas Music Manuscripts,
Manuscript score, alto choral part and orchestral parts of 'Ar gyfer heddiw'r bore = For this early morn: an Anglesey carol for all seasons' (English translation, Illtyd Lewis), arranged for mixed voices with piano at Treadam, February 1973. Published Magor: Mansel Thomas Trust, Ref: MT056 [1998?].
Ar gyfer heddiw'r bore = For this early morn,
Part of Mansel Thomas Music Manuscripts,
Manuscript score of an arrangement of 'Ar gyfer heddiw'r bore = For this early morn' (Welsh words, traditional; English words, Illtyd Lewis) for solo voice and piano. Published Magor: Mansel Thomas Trust, Ref: MT037 [1998?].
Henffych Fab = The Holy Child,
Part of Mansel Thomas Music Manuscripts,
Manuscript orchestral score of 'Henffych Fab = The Holy Child' (words, Aneirin Talfan Davies), together with orchestral parts in B♭ major and B major, one score cover and individual parts for alto, soprano, tenor (photocopy) and bass voices. Published as 'The Holy Child' for unison voices and piano by Novello & Co. Ltd, 1962, and by the Mansel Thomas Trust, Ref: MT094 [1998?].