Pocket diaries of the Reverend John Jenkins (1779-1853, DWB), Baptist minister at Hengoed, co. Glamorgan, 1809-1853, author, editor and publisher. The diaries run from 1819 to 1853 with gaps for 1820-1821, 1824, 1832, 1834 (covers only remaining) and 1847; many are incomplete, with two leaves only extant for 1819, the period 1 January - 13 February only for 1841 and September - December only for 1826 and 1848. The brief entries, in Welsh, record preaching engagements and sermon texts, and other details in connection with John Jenkins's ministry; there are also references to his writings, notably his Esponiad, to his printing and publishing work, to the sale of his publications, and to his sons Titus Jenkins, Baptist minister, John Jenkins, missionary, and Llewelyn Jenkins, publisher. The diaries for 1829 and 1830 contain references to the building of a new place of worship at Hengoed. Also included are personal accounts and others relating to the publication and sale of books.

Commonplace book, 1876-1893, of the Rev. Dr William Hopkyn Rees, a missionary in the North China, LMS, mission field, containing Welsh and English verse; sermon and other notes; quotations and maxims; and personal memoranda.

Miscellanea, 1835-1866 (watermark 1807), including poems by David Davis, Castell Hywel, William Moses, Edward Williams (Iolo Morganwg), William Walters, Daniel Evans (Daniel Ddu o Geredigion), Eliazar Lefi, Rhys Elis (o'r Wayn), William Ellis Jones (Gwilym Cawrdaf), etc., a Welsh version of the words of 'La Marseillaise', 'Llythur at benllywydd y Cy[m]rydorion', 'Trioedd gweddus eu bod ar wraig ...', recipes, notes from sermons, etc.