Miscellaneous poems, including a 'pryddest' on 'Saccheus ar ben y Sycamorwydden' written for an eisteddfod at Tredegar, 1870; a 'Carol Plygain' and a 'Carol Pasg'; various poems - some of them in the autograph of 'Nefydd' - by 'Giraldus' (Haverfordwest), William Rees ('Gwilym Hiraethog'), Robert Williams ('Robert ap Gwilym Ddu'), 'Gwyliedydd Gwent', William Jones ('Gwilym Ilid'), John Blackwell ('Alun'), etc.; 'Trioedd yr Offeiriad'; and hymns by J. M. Thomas.

A commonplace book belonging to Rowland Eames, Penrhyndeudraeth, 1776-1781, and containing notes on arithmetic, accounts, recipes, 'cerddi' and 'carolau', hymns, precedents of legal documents, music, night-school memoranda, a highway account for Llanfrothen, 1790, etc.

The tune book of Jane Davies, Felinganol, Llanrhystyd, 1857, containing hymn-tunes and airs.

Manuscript scores of sacred or liturgical works, consisting mainly of hymns and anthems, composed or arranged by Mansel Thomas for mixed voices.

A collection made by David Lewis in 1841 of hymn-tunes by himself, T. Evans, Abertawe, W[illiam] Williams, Caernarfon, 'J. R.' [John Roberts], Henllan, Charles James, Llanilar, D[aniel] T[homas] Williams ('Tydfylyn'), Thomas Edwards, Caerfallwch, John Morgan, John Williams, Dolgellau ['Ioan Rhagfyr'], W. Griffiths [or Griffith], R[osser] Beynon ['Asaph Glan Tâf'], J[ohn] Edwards, R. Williams and others; and English and Welsh airs, including 'Beti Brwyn', 'Nos Galan', 'Mentrwch Gwen', 'Codiad yr Ehedydd', 'Pe cawn i hon', 'Difyrrwch Gwŷr Gruffydd ap Cynan', 'Y dyddiau ni ddont yn ôl' and 'Mwynder Merch'.

A notebook designated 'Y Melin Brith', containing Unitarian Doxologies by Iolo Morganwg, some Unitarian hymns, and Byron's Hebrew or Jewish hymns, etc. The pages are numbered 1-32 and there is an outline of the contents on the cover. There is also another copy of the Byron hymns, with music and some notes on 'Jewish Sacrifices, and Ritual', etc.