A transcript by John Thomas ('Sion Wyn o Eifion') of cywyddau and other poems by Robin Ddu, Rhys Goch Eryri, Iolo Goch, Tudur Aled, Dafydd Gorlech, Dafydd Llwyd ap Llywelyn ap Gruffudd, Dafydd ap Hwlcyn ap Madog, Rhys Llwyd ap Rhys, Maredudd ap Rhys, Mathew Owen, Edward Morus and Sion Lleyn; the manuscript also contains triads, genealogies, 'Breiniau Gwŷr Arfon', 'Meddygon Myddfai', 'geirlyfr William Lleyn', etc.

A manuscript, mainly in the hand of James Davies ('Iaco ab Dewi') of 'Trerhedyn yn Llan Llawddoc' and completed 15 July 1713 (see p. 30), containing 'Meddygon Myddfai', being a transcript from the Red Book of Hergest, Col. 928. The manuscript is interleaved throughout, and passages of the text are translated here and there on the interleaves by Moses Williams.

Deeds, 1759-1862, relating to properties in the parishes of Llandingad, Llanfair-ar-y-bryn, Llangadog, Llansadwrn, and Myddfai, and the town of Llandovery, Carmarthenshire; and accounts, 1847-1849, of a Carmarthen draper.