Notes for a guided tour of the commote Uwch Aled, Denbighshire written by Robin Gwyndaf, 2011.

Account book, 1898-1918, of John Thomas, Rhoshelyg, Dinas Cross, co. Pembroke, undertaker and carpenter, with a few entries for 1880 and later additions, 1932-1942.

Minute-book of the Union of Welsh Teachers from its formation in 1926 up to 1938.

Holograph manuscripts of three tenor solos composed in 1930 by Thomas Hubert J. Rees - 'Y Gwylanod', 'Y Seren Unig', and 'Y Cwmwl', words by Sir John Morris-Jones.

A typescript copy of Alun Trevor's reminiscences of his childhood in north east Wales during the 1920s, and his life and career afterwards, entitled The songbird is singing (published by Parthian Books, 2009).

Tune book containing anthems and traditional tunes, mainly composed or arranged by Henry Williams, [c. 1863]-1873, including 'Glan Ogwen', later known as the carol tune 'Wele gwawriodd' (ff. 44-5; see letter and notes, 1985, relating to its authorship, NLW MS 22074D, ff. i-ii).

Papers relating to the Society for the Development of Tregaron and District (Cymdeithas Datblygu Tregaron a'r Cylch) comprising a minute book and draft minutes, 1967-1982; correspondence, 1967-1982; financial papers, 1967-1979; papers, 1969, relating to a survey by the Mid-Wales Industrial Development Association into the availability of labour in the Tregaron Rural District; and miscellaneous reports and printed booklets.

An account book, 1893-1895, recording wages paid to roadmen in the township of Trefeurig in the Lower Genau'r Glyn highway district, north Cardiganshire.

A copy of the fourth edition of William Chillingworth: The Religion of Protestants a safe way to Salvation ... London, 1674, with entries of baptisms, marriages and burials for the parish of Trefeglwys, co. Montgomery, for the year 1695 written on the fly-leaves.

Records, 1841-1897, of Trefeglwys School Board, 1871-1897; Llangurig School Board, 1874-1898; Poor Law Records of Newtown and Llanidloes Poor Law Union for the parish of Trefeglwys, Montgomeryshire, including: rate books, 1845-1892; Overseer's receipt and payment books, 1849-1872; and Collector's unpaid rates statement books, 1853-1883; and miscellaneous papers, 1879-1897.

Deeds and documents, [c. 1753]-1927, relating to properties in the counties of Brecknockshire, 1815-1834, Cardiganshire, [c. 1753]-[c. 1853, Glamorgan, 1851, Montgomeryshire, 1803-1857, Monmouthshire, 1843, and Pembrokeshire, 1819-1927, referred to the Treasury Solicitor for advice or litigation.

The minute book of the Trawsfynydd school attendance committee, 1877-1889.

A poor rate assessment made on the inhabitants and landholders of the upper division of the parish of Trawsfynydd, Merioneth, 27 April 1807.

A transcript of The Petition of the Six Counties of South Wales and the County of Monmouth, Presented to the Parliament of the Commonwealth of England For a supply of Ministers, in lieu of those that have been Ejected [printed in 1652], together with a part-transcript, part-abstract of A true and perfect Relation of the Whole Transaction concerning The Petition of the six Counties of South Wales ... With the Parliament's Resolves and proceedings thereupon Now humbly Represented to his Highnesse the Lord Protector's consideration [published in 1654].

One of forty-one volumes containing transcripts of, and extracts from, parish registers and bishops' transcripts of parish registers principally from Monmouthshire, in the autograph of Bradney, with several insets in the autographs of John Hobson Matthews (Monmouth), Francis Green (St Davids), John Davies (Aberystwyth) and others. This volume contains transcripts and extracts from the parish registers of Panteg, 1598-1785; Llanishen, 1601-1775; Llanllowell, 1664-1762; Llangibby, 1678-1806; Llangoven, 1691-1745; Llanvapley, 1699-1812; Goytrey, 1700-1778; Trostrey, 1723-1811; Pen-y-clawdd, 1728-1806; Bettws Newydd, 1736-1810; and Oldcastle, 1794-1836.

Two essays on religious subjects and a draft of a 'llythyr serch' written for an 'eisteddfod' by Trebor Aled.

Copi o draethawd a gyflwynwyd ar gyfer gradd MA gan Lona Jones (née Gwilym) yn dwyn y teitl 'Traddodiad barddol Maldwyn yn y ddeunawfed ganrif', Prifysgol Cymru Aberystwyth, 1983.

A summary of attendance and payments at Towyn British School, 1862-1899.

Journal of John Matthews of Birmingham, describing a tour which he made through France, Germany, Switzerland and Austria from May to October 1842 with his wife, Hannah Maria Matthews (1799?-1890) (ff. 1-86), and their tour in Wales, May to September 1844 (ff. 88-127), the latter section being illustrated with engravings, 1841-1842.

Journal of a tour through Wales and part of Ireland in August 1848 by Charles Lucey of Clapham and later of Henley, shipwright, with a map showing his itinerary and further notes added by him, 1856-1891.