Miscellaneous, stray letters, 1873-1902, addressed to Gwilym Cowlyd. Most of the letters concern literary matters, the sale and purchase of books and journals, publishing, and the convention of various eisteddfodau. Often Gwilym Cowlyd is invited to attend and adjudicate at eisteddfodau. The correspondents include Sir John Ballinger, 1893, Thomas Gee (2), 1877-1889, and Alfred Neobard Palmer, 1882.

General letters, 1859-1907, to Gwilym Cowlyd interspersed with a few other papers. Many are on literary and poetic themes and some refer to the publication, sale and purchase of various monographs and journals. A number relate to the holding of national and local eisteddfodau, several inviting Gwilym Cowlyd to act as adjudicator. Some concern the publication of his adjudications. Some poets submit their work to Cowlyd for his opinions. Many also contain references to the affairs of Gorsedd Beirdd Ynys Prydain. Many of the letters from 1904 concern the offer made by Gwilym Cowlyd to hand his personal library of books and other materials to the Llanrwst Urban District Council. The correspondents include George Osborne Morgan MP (2), 1878-1885.

Notices, 1819-1853, mainly declaring that local eisteddfodau are to be held. Most of the notices are issued by the Cymmrodorion Society in Powys, 1819-1824. There are also two copies of a notice concerning the Royal Denbigh Eisteddfod in 1828 and one issued by the Abergavenny Cymreigyddion in 1853.

Material relating to eisteddfodau, mainly in the hand of Walter Davies, including notes on eisteddfodau, lists of subjects, adjudications, printed programmes, circulars, and minutes of committees, including some in the hand of John Jenkins, and original compositions by Evan Evans (Ieuan Glan Geirionydd), etc.

A volume of miscellaneous press cuttings from Welsh and Welsh-American newspapers and periodical publications compiled, with some holograph annotations, by John Jones ('Myrddin Fardd'). The titles include 'Gorsedd y Beirdd', 'Yr Eisteddfod Genedlaethol' (Cardiff, 1883), 'Diwygiad yr Eisteddfod', 'Yr Eisteddfod a'i Hanes' (Rhyl, 1892), 'Llith Aneurin Fardd', 'Eisteddfod Genhedlaethol Aberdar, 1861 - "Hanes Llenyddol Cymru". Beirniadaeth' (by T. Stephens, Merthyr Tydfil), 'Sion Philip, Mochras', 'The British Kymry .... By the Rev. R. W. Morgan, Pc, Tregynon' (review), 'Yn y Bala', 'Review Flynyddol Gwirfoddolwyr Morgannwg ar Gomin Hirwain', 'Taith tua Chaerlleon-ar-Wysg', 'Y Gohebydd Gwibiol' (notes on the history and antiquities of Llandybie, Bettws, Llanarthney, Gelli Aur, Llanfihangel Aberbythych, Llangathen, Abergwili and Carmarthen), 'Hen Arferion Crefyddol y Cymry', 'Brawddegau y Werin' (a list of Welsh dialect expressions), etc. Also mounted in the volume is a printed prospectus of Robert Griffith (Manchester), Telyn a Cherdd Dannau y Cymry [?1913]. There are two labels laid on the outer upper cover, the one numbered '10' and the other in the hand of 'Myrddin Fardd' inscribed 'Chwidredd J. Morris Jones, Llythyrau Aneurin Fardd, Beirniadaeth T. Stephens, The British Kymry, etc. etc.'.

A composite volume, lettered 'Eben Fardd's MS', comprising day and 'memoranda' books of Ebenezer Thomas ('Eben Fardd'). Among the material recorded by the writer are extracts relating to Tractarianism; diary entries, 1837-9, 1849; shop, school, bookbinding and other accounts, 1839-40; mensuration problems and tables, etc., c. 1834; 'Memorandum of Literary adventures and Transactions ... 1848-55, being largely a list of adjudications at eisteddfodau and literary meetings, and 'adjudicatory transactions conducted on the New Plan', 1855-6, and 'Requisitions & invitations declined', 1855-7; Llanarmon School, Clynnog School, and sundry accounts, 1827; etc.