A volume lettered on the upper cover 'The Mayors, Sheriffs, &c. of the Borough, and the High Sheriffs of the County of Caermarthen'. It contains the names, and facsimiles of the autographs of, the mayors of the county borough of Carmarthen [see also N.L.W. MS. 12377D] and of the Kings and Queens of England, temp. Henry IV-1911, with biographical notes; a transcript of a statement of the pedigree of William Herbert, 1st earl of Pembroke, compiled in 1460 by Ievan ap Rytherch ap Ievan Lloyd, esq., Howell ap David ap Ievan ap Rys, gent., and Howell Surdwall, Ievan Deulwyn, and Ievan Brechva, bards, by commission of King Edward IV; the names of the high sheriffs of the county of Caermarthen, 1537-1901; and the names of the bailiffs, afterwards called sheriffs, of the county of the borough of Caermarthen, 1400-1905. The entries after 1901 are in another hand.

A volume containing a list, compiled by Alcwyn C. Evans in 1851, of the names and autographs of the mayors of Caermarthen, 1400-1852; two leaves of a daily school register in the hand of Alcwyn C. Evans, June 1890-July 1891; and a list of Oriental proverbs.