A volume entitled 'Llopion Llên', compiled during the period 1930-1934, containing press cuttings of Welsh literary and antiquarian interest ('Welsh Sidelights', 'Llên Gwerin Morgannwg', etc.).

Manuscripts comprising drafts of the hitherto-unpublished portions of Edward Owen's Catalogue of manuscripts relating to Wales in the British Museum, with draft indexes; reports prepared by Edward Owen on Liverpool Town Dues and related papers, 1931; essays written by him for the London Eisteddfod, 1887, and the National Eisteddfod at Caernarfon, 1894; notes, pedigrees, transcripts and letters relating to Welsh history, antiquities, county history, families and individuals such as John Edwards of Chirk, and historical figures including Owain Glyndwr [some items published 1893-1935]; transcripts and extracts relating to the history of Wales taken from public records by Edward Owen, E.A. Lewis and others, including several land surveys, at least one of which was used as evidence before the Royal Commission on Land in Wales, 1895; transcripts of papers by or relating to Alfred Neobard Palmer, Wrexham, 1885-1922; facsimiles and original documents including Privy Purse Accounts of Queen Anne, 1702-1710, and a holograph letter from Queen Anne to Sarah, duchess of Marlborough, 1710; letters mainly addressed to William Edwards of Chirk Hall, 1675-1677; autograph letters, mostly addressed to Edward Owen, 1886-1943; and deeds, 1463-1769, the majority of which relate to the estates of the families of Edwards of Plas Newydd and Puleston of Emrall in cos. Denbigh and Flint.

Papers of, or collected by, George Eyre Evans, 1669-1939, including his diaries and journals, autobiographical data and correspondence, 1872-1939; notebooks and scrapbooks on archaeological and historical matters in Wales, relating particularly to Carmarthenshire and Cardiganshire, 1900-1939; copies of his published works with insertions, [c. 1887]-[c. 1908]; diaries, memorandum books and autograph letters of members of the Powell family of Colyton, Devon, 1788-1921; diaries, correspondence and other papers of the Rev. David Lewis Evans, 1846-1902; letters and notes relating to Welsh Unitarianism, 1806-1905; letters by and about ministers, 1775-1904; miscellaneous manuscripts of religious and antiquarian interest, some relating to Wales and to Colyton; and a volume of proceedings of the General Assembly of General Baptist Churches, 1730-1787.

Transcripts, [c. 1827] (watermark 1825), in an unknown hand, of journals of tours in Wales and parts of England undertaken by Sir Richard Colt Hoare in 1793 and 1801-1803, taken from manuscripts now at Cardiff Central Library, MS 3.127 and MS 4.302.
The journals include a tour of North Wales, 12 April-1 August 1801 (ff. 1-88, original pagination 1-176), and tours of South Wales, 25 April-14 July 1802 (ff. 96-160, pp. 1-128), 1 May-7 July 1793 (ff. 164-180, pp. 1-33) and 14 May-11 June 1803 (ff. 183-190 verso, pp. 1-16). These are all published, in edited form, in The Journeys of Sir Richard Colt Hoare through Wales and England 1793-1810, ed. by M. W. Thompson (Stroud, 1983). An additional fragment of a tour from Hagley to Stourhead, 24-27 August 1802, is also included (ff. 91-95, pp. 1-10); this is not recorded by Thompson. Each individual tour is accompanied by a list of places visited (ff. 89-90, 162-163, 181-182, 191). A letter, 28 September 1904, from Emmeline Salvin, concerning the volume's provenance, has been tipped in on f. ii.

Papers of Charles Edward Breese, mainly dealing with antiquarian matters and including material, [1910x1920], relating to crown lands in Wales; correspondence, much of which is addressed to Breese, 1872-1932; an interleaved copy of The Kalendars of Gwynedd (London, 1873), compiled by Breese, and additions, [1909], to the Kalendars; and miscellaneous notes, press cuttings, etc. Also included are papers of Edward Breese, father of Charles E. Breese.

Nineteen letters, 1804-1806, to Sir Richard Colt Hoare, mostly concerning antiquities in Brecknockshire and elsewhere in Wales, as well as Shropshire and Cheshire, and mostly relating to Hoare's research for his Itinerary of Archbishop Baldwin Through Wales, A.D. 1188, by Giraldus de Barri …, 2 vols (London, 1806) (ff. 1-34).
The correspondents include Walter Davies (Gwallter Mechain), 1 November 1804 (ff. 1-2), R[ichard] Fenton, 1805 (ff. 3-11), Theophilus Jones, [?1805] (ff. 16-17), William Owen [Pughe], 1805-1806 (ff. 18-23), and [the Rev.] Henry [Thomas] Payne, 1804-1805 (ff. 24-34). The letters also include a sketch map of possible Roman remains near Llanymynech, Montgomeryshire (f. 2); a transcript of a Latin document of 1295/6 relating to Shrawardine Castle (f. 15); and translations into English by William Owen [Pughe] of part of an ode and englynion by Cynddelw (f. 19 verso, 20-21). Also included are further notes by William Owen [Pughe] on Bardic lore and Cynddelw (ff. 35-47) and by Henry Thomas Payne on Giraldus Cambrensis (ff. 48-49).