Records from the office of D. T. M Jones & Co., solicitors, 1775-[?1940], including office correspondence, 1775-1840, of Edward Jones senior, 1775-1820, Edward Jones junior, [c. 1790]-1840, Thomas Lewis, 1793-1800, John Jones, 1805-1852 (predominantly 1845-1848), Thomas Jones, 1860-1897, and D. T. M. Jones, 1898-1933; manuscript books, 1744-1925, including letter books, 1859-1917; depositions of witnesses, 1736-1768; deeds and records of lands in Cardiganshire, Carmarthenshire, Glamorgan, Pembrokeshire and Radnorshire, [16th century]-1949, including the estates of Dinas, Brecknockshire, 1756-1949, the Gwynne family of Glanbran and Buckland, 1679-1882, Cynghordy, Carmarthenshire, 1843-1945, Abermarlais, Carmarthenshire, 1712-1923, the Lloyd family of Briwnant, Carmarthenshire, 1544-1927, Glansevin, Carmarthenshire, 1678-1914, the Herbert Lloyd estate, Carmarthen, 1805-1884, Jones Family of Ystrad estate, Carmarthen and district, 1776-1865, and Llandeilo and district, 1785-1882, Glanyrannell estate, Carmarthenshire, 1692-1919, and Honeyborough, Pembrokeshire, 1783-1923; accounts, 1782-[?1940]; manorial records, [c. 1830]-1887; papers of Roger Jones, attorney, 1565-1867, including correspondence, [c. 1750]-1772, deeds and documents relating to the practice and estate, 1565-1867, and correspondence of Rev. John Jones, 1738-1790.

Collection of deeds acquire by D. Gethin Williams, relating to properties in Carmarthenshire and Glamorgan, 1687-1889.

Records relating mainly to the industrial concerns of the Crawshay family of Cyfarthfa, Merthyr Tydfil, Glamorgan, [1706]-1878, including letters and letter books of William Crawshay I and II and Robert Crawshay, 1806-1877; cash books, ledgers and bankers drafts, 1834-1888; deeds, [1706]-1885; wills, deeds and miscellaneous material, 1801-1838; balance sheets for ironworks, 1810-1867; will, valuation and probate for William Crawshay II, 1865-1869; shares and bills of exchange, 1870-1878; and Hilston Park estate papers, 1838-1862 and Caversham Park estate papers, 1826-1864. The archive represents the working papers of a major ironworking dynasty.

Deeds and documents, 1515-1898, relating principally to Wales, in particular Cardiganshire, Carmarthenshire, Monmouthshire and Glamorgan. The collection does not relate to a single particular family or estate, but the Cardiganshire documents mainly relate to Aberystwyth and Llanbadarn Fawr.

A manuscript entitled The Practice of the Court of Great Sessions for the several Counties of Glamorgan, Brecon and Radnor ... 1763.

Deeds and other documents, [16 cent.]-[19 cent.], collected by James Coleman, relating to Anglesey, Brecknockshire, Cardiganshire, Carmarthenshire, Caernarfonshire, Denbighshire, Flintshire, Glamorgan, Merionethshire, Monmouthshire, Montgomeryshire, Pembrokeshire, and Radnorshire, in Wales; and Cornwall, Cumberland, Gloucestershire, Herefordshire, Lancashire, Shropshire, and Suffolk, in England.

Deeds relating mainly to Cardiganshire and Carmarthenshire, 1782-1951, including deeds of the Johnes family of Hafod, Cardiganshire, and rentals of manors in Cardiganshire and Carmarthenshire, [c. 1891]-1925, including the manor of Tal-sarn and Silian, [c. 1891]-1916.

Survey of the manor or lordship of Cadoxton-juxta-Neath, co. Glamorgan, containing answers to articles of enquiry presented to twenty-one named jurors, followed by sections containing details of properties, tenants, rents and services.

Deeds, 1591-1857, relating to land in the parishes of Pennard, Llangyfelach, Wick, St. Johns (Neath), Neath, Bishopston, Llangiwg, Penrice, and Swansea, all in the county of Glamorgan; estreats, 1747-1800, of the manor of Ogmore, Glamorgan.

Deeds, relating to properties in the following counties: Anglesey, 1737-1871; Cardiganshire, 1736-1780; Carmarthenshire, 1684-1838; Caernarfonshire, 1831-1878; Denbighshire, 1591-1837; Flintshire, 1465-1855; Glamorgan, 1597-1883; Merionethshire, 1793; Pembrokeshire, 1683-1857; and Radnorshire 1623-1816.

An incomplete biographical dictionary of Glamorgan poets and literateurs, from Rhys Morgan to Nathaniel Williams, compiled, [20 cent, first ¼], by Philip Thomas.

An essay on 'Beirdd Morgannwg hyd ddiwedd y 18fed ganrif (The Bards of Glamorgan to the end of the 18th Century)'.

Poetry and essays written by John Jones ('Gwalch'), Aberaman, mainly for 'eisteddfodau' in Glamorgan and Monmouthshire.

A manuscript containing ballads, mainly in the Glamorgan dialect, and hymns.

Deeds collect by J. Augusta Berry, mainly relating to properties in Glamorgan, Pembrokeshire and Carmarthenshire, 1753-1865.

'Casgliad o Ganeuon i Ychain Sir Morganwg', 1899, wedi eu casglu gan y Parch. Owen Davies Thomas (Owain Cyfelach), Pontarddulais. = A collection of Glamorgan cattle songs, 1899, collected by the Rev. Owen Davies Thomas (Owain Cyfelach), Pontarddulais.

Cyhoeddiadau a phapurau ymchwil G. J. Williams ar draddodiad llenyddol Morgannwg, gan gynnwys drafft llawysgrif o'r gyfrol Traddodiad Llenyddol Morgannwg (1948); ei draethawd buddugol ar feirdd Morgannwg yn Eisteddfod Genedlaethol Castell Nedd, 1918; darlithoedd ac erthyglau, [1911x1963]; a nodiadau amrywiol, [1911x1963].

Papurau'r Parch James Ednyfed Rhys (Ap Nathan), a phapurau'r unigolion canlynol a ddaeth i'w feddiant: y Parch. Evan Rees (Dyfed), Jonathan Rees (Nathan Wyn), David Watkin Jones (Dafydd Morganwg) a Thomas Jones, Trealaw. Mae papurau Ap Nathan, 1901-1959, yn cynnwys cerddi a chaneuon, ysgrifau a chyfieithiadau; papurau Dyfed, 1869-1923, yn cynnwys llythyrau, nifer ohonynt o bwysigion llenyddiaeth Cymru, 1878-1923, dyddiaduron a llyfrau poced, 1873-1896, beirniadaethau eisteddfodau, 1887-1907, nodiadau darlithoedd a phregethau, a barddoniaeth, 1869-1899; papurau Nathan Wyn, 1874-1905, yn cynnwys llythyrau, 1874-1905, cerddi ac ysgrifau, 1883-1901, torion o'r wasg ar bynciau llenyddol, 1868-1900; papurau Thomas Thomas, 1900-[c. 1935], yn cynnwys llawysgrifau ar lên gwerin ac arferion, hanes Morgannwg, 1921-1933, y Wenhwyseg, enwau lleoedd Morgannwg, [c. 1893]-1931, a thorion o'r wasg, 1900-1911; a phapurau Dafydd Morganwg, yn cynnwys ei hunangofiant. = Papers of the Rev. James Ednyfed Rhys (Ap Nathan), and papers of the following acquired by him: the Rev. Evan Rees (Dyfed), Jonathan Rees (Nathan Wyn), David Watkin Jones (Dafydd Morganwg), a poet and historian from Merthyr Tydfil, Glamorgan, and Thomas Jones, antiquary and headmaster of Trealaw school in Rhondda, Glamorgan, whose interests included local history and folklore. The papers of Ap Nathan, 1901-1959, include poems and songs, essays and translations; the papers of Dyfed, 1869-1923, include letters, many from important Welsh literary figures, 1878-1923, diaries and pocket books, 1873-1896, eisteddfod adjudications, 1887-1907, lecture notes and sermons, and poetry, 1869-1899; the papers of Nathan Wyn, 1874-1905, include letters, 1874-1905, poetry and essays, 1883-1901, newspaper cuttings of literary material, 1868-1900; the papers of Thomas Jones, 1900-[c. 1935], include manuscripts on folklore and customs, Glamorgan history, 1921-1933, the Gwentian dialect, Glamorgan place names, [c. 1893]-1931, and newspaper cuttings, 1900-1911; and the papers of Dafydd Morganwg, historian and poet, including his autobiography.