Part of Llwyn Estate Records
Llwyn estate records, mainly title deeds and abstracts of title, 1623-1932, together with a few business letters, plans, printed sale catalogues and rentals, 1855-1908, relating to properties principally in Llanfyllin (including the manor of Brithdir) and elsewhere in Montgomeryshire, and to a lesser extent in Denbighshire, Merioneth, Shropshire, Cheshire and Lancashire.
Correspondence and miscellaneous papers
Part of Harrison family papers
Correspondence and miscellaneous papers deposited in 1957.
Part of Glansevern Estate Records
Deeds of the Brigstocke family
Part of W. Evans George and Sons (Solicitors) Collection of Brigstocke family deeds,
Deeds of the Brigstocke family, relating to properties in Carmarthenshire, Cardiganshire, Pembrokeshire and Glamorgan, grouped chronologically according to members of the family (Nos 542-905).
Part of Pitchford Hall (Ottley) Papers
Papers relating to other persons,
Part of J. H. Davies, Cwrt Mawr, papers
Papers and correspondence, 1658-1907, acquired by J. H. Davies, relating to other individuals, namely Gwilym Cowlyd, 1658-1907, William Davies, 1822-1855, John Rees, 1844-1867, the Richards family of Darowen, [?1818]-[?1848], and the Rev William Thomas, 1869-1877.
Part of Dunraven Estate Records,
Part of Iolo Morganwg and Taliesin ab Iolo manuscripts and papers
Correspondence of Edward Williams (Iolo Morganwg), comprising letters addressed to him, 1771-1826 (Nos 1-770), letters, copy letters and draft letters sent by him, [?1791]-1826 (Nos 771-1045), and miscellaneous letters, 1676-[1820x1826] (Nos 1046-1075). Most of the letters are published in The Correspondence of Iolo Morganwg, ed. by Geraint H. Jenkins, Ffion Mair Jones and David Ceri Jones, 3 vols (Cardiff, 2007).
Papers, 1681, 1759-2015, of Mari Ellis (née Headley), including correspondence with her family; letters from friends and others; diaries, 1930-2014; papers relating to her work on newspapers and in broadcasting, 1948-2004; research papers, [?early 20 cent.]-[2008x2010]; papers of the Headley family, [1890x1896]-[2000s]; and miscellaneous papers, 1681, 1759-1994, acquired by her.
Part of Diocese of Llandaff Records
Contemporary copies of parish registers arranged according to parish.
Manuscripts and antiquarian notes collected by T. Llechid Jones
Part of T. Llechid Jones collection
Manuscripts and antiquarian notes collected by T. Llechid Jones. Many of these are transcripts, with dates of files taken from the original material, not from the copies.
Part of Nevill Industrial Records,
Part of Gogerddan Estate Records
Gogerddan rentals, 1719-1931 and Abernantbychan rentals, c. 1722-1887 .
Part of St Davids Diocesan Records
Personal papers of Bishops of St Davids; Confirmations
Deeds and documents relating mainly to properties in the counties of Monmouthshire, Glamorganshire and Cardiganshire, a significant number of which originated in the offices of Bythway & Son, solicitors, of Pontypool.
Legal papers (Lisburn V. Vaughan)
Papers of Captain William Owen, R.N.
Part of Glansevern Estate Records
Papers of Captain William Owen, R.N., comprising diaries and journals, 1750-1775, naval log books, 1750-1778, naval journals, 1750-1775, and other papers, 1746-[c. 1795].
Owen, William, 1732?-1778
Bennett, Richard, 1860-1937