Records relating to the Whitland and Gilfach quarries, comprising records of usage, [1890-1899]; slate prices, [1895]; account books, 1896-1918; report, 1897; agreements, 1898 and 1902; and lease 1898.

Deeds, 1557-1808, relating to premises mainly in Carmarthenshire, with some in Montgomeryshire, Cardiganshire and Flintshire, and a small number in other Welsh counties.

Deeds relating mainly to Carmarthenshire, 1531-1857, and to other Welsh counties including Brecknockshire, 1655-1800, Cardiganshire, 1628-1819, Glamorgan, 1673-1792, Monmouthshire, 1636-1795, Montgomeryshire, 1675-1702, Pembrokeshire, 1724-1811, and Radnorshire, 1689-1773. There is no apparent connection between the deeds.

Deeds, mainly relating to Cardiganshire and Carmarthenshire, 1668-1757.

Rhestr o'r rhoddion a'r taliadau, 22 Rhagfyr 1837, a dderbyniodd John Williams a Margaret James [tad-cu a mam-gu D. J. Williams] ar gyfer diwrnod ei neithior; marwnad, [1886], i'w dad-cu Jaci [John Williams], Penrhiw, Llansawel, gan 'Hen Gyfaill'; ynghyd â llungopïau, 1967, o gyfrifiad 1851 yn cynnwys cofnod ar gyfer teulu John a Margaret Williams, Penrhiw, a ddarparwyd gan D. Oswald Davies, a nodiadau teipysgrif, 1967, o gyfrifiad 1841-1861 a ffynonellau achyddol eraill.

Nodiadau darlithiau ar gyfer dosbarthiadau yn Sir Gaerfyrddin yn bennaf, [1938], [1959]- [1976], gan gynnwys llyfr nodiadau 'Enwau afonydd a nentydd Sir Gaerfyrddin', 1969.