A volume of hymn-tunes, chants and anthems compiled by Owen Williams, [Caerdegog Uchaf, Cemais, Anglesey,] 1839, containing examples of the work of Richard Mills ['Rhydderch Hael'], David Harri[e]s, David John James, Penrhyndeudraeth, John Williams, Dolgellau, William Evans, Llanfwrog, and J. Roberts, Henllan.

Manuscript score (without words) of 'A sequence of chants' for Psalm 25, together with a copy (photocopy) of the vocal score composed by Mansel Thomas at Treadam, May 1972.