Deeds (mainly drafts) and estate correspondence, 1849-1862, relating to the Burghill estate, and papers (apparently unrelated to the Chirk Castle estate) of Mary Coats of Crompton Street, St Anne, Westminster, 1768-1782.

Printed programmes, circulars, etc., 1866-1929, preserved by John Burrell and relating mainly to cultural and other activities of certain members of the London-Welsh community, particularly in connection with 'Cymdeithas y Brythonwys' ('The Cambro-Briton Society'). There are also papers and circulars issued by the Calvinistic Methodist churches of London, material relating to the Welsh Hospital for South Africa and the National Eisteddfod of Wales held in London, 1887, papers referring to military, educational and political activities, etc.

Letters and circulars, 1886-1900, relating to 'Cymdeithas y Brythonwys' ('The Cambro-Briton Society'), London, most of them being addressed to John Burrell. Among the numerous correspondents are Judge Ivor Bowen [d. 1934], Morgan Davies, W[illiam] Cadwaladr Davies [1849-1905], Sir Owen M[organ] Edwards [1858-1920], T[homas] E[dward] Ellis [1859-1899], Sir E. Vincent Evans [1851-1934], Sir Ellis Jones Griffith [1860-1926], J. Elias Hughes, Sir Lewis Morris [1833-1907], Sir T. Isambard Owen, T. Woodward Owen, Sir John H. Puleston [1829-1908], Lewis W. Roberts, R[obert] D[avies] Roberts [1874-1940], T[homas] F[rancis] Roberts [1860-1919], Sir W. Bowen Rowlands, D[avid] A[lfred] Thomas (afterwards viscount Rhondda) [1856-1918], W[illiam] ['Glanffrwd'] Thomas [1843-1890] and Sir Thomas Marchant Williams [1845-1914]. There is also a group of letters dealing with inquiries from the Reverend John Owen, Mold and others relating to the number of Welsh people resident in London who were or were not associated with places of worship.

Papers mainly relating to the published work of Herbert Stanley Jevons, 1895-1963, correspondence on overseas development, coal and economics, 1909-1949; correspondence on housing in Wales, 1912-1914; papers relating to Ethiopia, 1935-1955, including correspondence with Emperor Haile Selassie I, 1937-1953; letters between Herbert Stanley Jevons and John Maynard Keynes, 1930-1936.

An illuminated address in Welsh, presented, 1912, by members of the Literary and Debating Society of the Welsh Baptist church, Castle Street, London, to the Rev. Herbert Morgan (1875-1946) on his departure from London.

The file, [1890]-[1891], contains articles on 'Facts about hymns' (pp. 2-4), 'Vanishing London' (pp. 14-15), 'Christmas services and rations in the district. Carmarthen. Service at St Peter's' (pp. 35-36), 'Death of Cardinal Newman' (pp. 52-53, 79, 81-83) and 'Cardinal Newman's letters' (pp. 65-67).

The series comprises letters written mainly from the Board of Education offices at Whitehall, the family home at Neuadd Wen, Llanuwchllyn, and various locations which O.M. Edwards visited whilst Chief Inspector of Schools in Wales to his son Ifan ab Owen Edwards and daughter Haf Edwards. They contain family and domestic news, advice, and some of the letters include vivid descriptions of events in London and Llanuwchllyn.

A file of programmes, pamphlets, reports, etc. relating to literary societies, 'eisteddfodau', literary festivals, concerts, schoolboard reports, county council elections, etc. mainly in the Barmouth and Porthmadog districts, with specimens from other districts in North Wales and London, 1869-1908; press cuttings and transcripts; papers relating to W. H. Roberts, bookseller, London; and letters by John Richard Williams ('Tryfanwy').

Notebook, 1749-1777, of Samuel Deykin of Carmarthen, including a journal of his travels to London and Barnsley, March-June 1950; an imaginary journal for 1746, had Charles Edward Stuart acceded to the throne (ff. 11-16); topical verse, miscellaneous notes and memoranda, and religious meditations.

Papers of and collected by T. J. Evans, 1843-[c. 1950] , comprising materials of Welsh interest, such as press cuttings, notebooks and research notes, relating to subjects such as various eminent Welshmen, London Welsh, the establishment and early development of the National Library of Wales and Welsh orthography; and including volumes containing poetry and papers relating to poetry, composed by T. J. Evans and other poets; and correspondence.

Papers of Trevor Lloyd Williams, 1859-1946, comprising scrapbooks of press-cuttings, letters, notebooks and ephemera relating mainly to his family, in particular to Rev. John Morris, Rev. John Lloyd Williams, Rev. Thomas Nicholson, Rev. W. Pedr Williams, and Ivor Percy Nicholson; also included are notebooks of Trevor Lloyd Williams containing transcripts of documents and notes relating to Welsh history.

Welsh School, Ashford, and British Charity School, Board of Governors and trustees minutes, 1718-1848; House Committee minutes, 1830-1905; cash books and financial records, 1792-1905; applicants books, 1826-1844; correspondence and papers, 1760-1904; correspondence and records of the Society for the Diffusion of Useful Knowledge in Wales, 1849-1851; correspondence relating to Llandaff Diocesan Commitee, 1849; and deeds and legal correspondence relating to lands in Ashford, Middlesex, 1845-1893; minute books of the Society of Ancient Britons, 1823-1856, and of the Cymmrodorion, 1828-1849.

A further deposit of papers comprising committee minute books (5), 1905-1987; household wages books (4), 1949-1958; accounts books (3), 1846-1974; receipts and payments books (7), 1813-1963; apprenticeship book, 1852-1853; letters book, 1839-1849; Schoolmistress report book, 1868-1882; attendance and fee register, 1923-1940; confirmation book, 1916-1964; school reports, 1848-1873; house mark book, 1941-1956; House Committees visiting book, 1880-1891; cash books (3), 1932-1956; general fund book, 1949-1958; inventory and valuation book, 1946; school numbers book, 1945-1957; and an investments book, 1940-1949.

Papers, [1939]-2007, pertaining to the school, accumulated by Jacqueline Flindall, a former pupil of the Welsh Girls' School, including letters and items relating to the 150th anniversary celebrations in 2007.

Papurau'r Parch. William Rhys Watkin, yn cynnwys nodiadau pregethau a phapurau eraill,1899-1936; gohebiaeth, 1878-1948, blwyddlyfrau printiedig Undeb Bedyddwyr Cymru yn cynnwys cofnodion gan WRW, 1891-1945; nodiadau ymchwil ac erthyglau ar Bedo Brwynllys, y Parch. E. T. Jones, a hanes y Bedyddwyr, 1909-[1945], a llyfr nodiadau Pwyllgor yr Eisteddfod Genedlaethol, Llanelli,1928-1931; a chofnodion a gasglwyd ganddo, gan gynnwys cofnodion a chyfrifon eglwysi'r Bedyddwyr yn sir Gaerfyrddin a Morgannwg, 1843-930; nodiadau pregethau a phapurau eraill Richard Davies ('Yr Hen Belican'),1816-1873; papurau a llyfrau nodiadau amrywiol yn ymwneud â'r Bedyddwyr Cymraeg, 1787-1896; a phapurau Thomas Jones, morwr, o Aberdaugleddau, sir Benfro, 1845-1900 = Papers of Rev. William Rhys Watkin, including sermon notes and other papers, 1899-1936; correspondence, 1878-1948, printed Baptist Union of Wales yearbooks containing entries by WRW, 1891-1945; research notes and articles on Bedo Brwynllys, the Rev. E. T. Jones, and Baptist history, 1909-[1945], and notebook of the National Eisteddfod Committee, Llanelli, 1928-1931; and records collected by him, including minutes and accounts of the Welsh Baptist Church, Eldon Street, Moorfields, London, 1846-1905; records of Baptist churches in Carmarthenshire and Glamorgan, 1843-1930; sermon notes and other papers of Richard Davies ('Yr Hen Belican'), 1816-1873; miscellaneous papers and notebooks relating to Welsh Baptists, 1787-1896; and papers of Thomas Jones, mariner, of Milford Haven, Pembrokeshire, 1845-1900.