Holograph manuscripts of poems by John Jones ('Talhaiarn'):- 'Clod ac Anglod i Lundain', 1845, with a glossary 'for the benefit of country cousins who do not understand their own langauge'; 'Cân i fy Mam' copied out in a letter to Thomas Jones, 1852, 'the best song, in my opinion, I ever wrote'; 'To Aled [O Vôn]', 1857; 'Cymru lân, gwald y gân', 1857; an englyn to 'David Owen Williams, mab bach Eryr Môn', 1867, with an English translation; 'Photograph Talhaiarn', two 'englynion', 1863; 'Gweno fwyn gu', 1868; 'Cerdd i Lanfair Talhaiarn'; 'Mae Robin yn swil'; 'Brenin y Canibalyddion', a broadside; a group of miscellaneous poems:- 'Galar-gân ar ôl Ann Hughes, yr Harp, Llanfair Talhaiarn', by Joseph Roberts, Bryn-neuadd, 1876; 'Llef o'r Ysbyty' by Hugh Edwards ('Huwco Penmaen'), 1882; 'englynion ar briodas Meistr Thomas Hughes a Miss Ann Jones of Harp', 1847; 'englynion o ddiolchgarwch i Talhaiarn a Thomas Jones, yr Harp, am Razor' by 'Irwedd Min Elwy', 1858; 'Galar gŵr ar ôl ei wraig' by Thomas Hughes; 'Cân dewis gwraig' and an 'englyn ar briodas Owen Williams' by 'Eilydd Elwy'; 'Cân i Maria Hughes, Harp', by 'Eilydd Elwy'; a stanza to a young maiden by 'Ysbryd Glan y Gors'; 'Englynion ar ddychweliad Talhaiarn o Ffrainc'; a poem to 'Talhaiarn' by 'Aled o Fôn'; an incomplete letter addressed from Oswestry, 1836, with a poem entitled 'Tri phenill i'w canu ar hyfrydwch y Brenin Sior'; 'At fy nghyfaill Talhaiarn', 1852, a broadside, probably by 'Aled o Vôn'; 'Wanted a Clerk, a new song dedicated without permission to W. G. & Co.' and a Spanish dialogue 'Patron y Dependiente' probably by Thomas Jones, Valparaiso, 1848; and an 'Invocation to the Muse', 1895; autograph letters from Thomas Jones, Valparaiso, 1845, to J. D. Jones, grocer, St Asaph, and John Jones ('Talhaiarn'), 1863-7, to John and Maria Hughes; an account of the administration of the estate of John Jones ('Talahaiarn') by Thomas Jones, 1871; a copy of a letter by Mahomed Cassein; and press cuttings of poems by 'Talhaiarn' and Robert Jones ('Meigant'), articles on 'Eglwys y Cymry', 'Llanfair Talhaiarn', a letter by John Williams ab Ithel on the subject of the chair poem at the Llangollen eisteddfod of 1858, and a broadside reprint of the 'Reasons assigned by Cadvan and Talhaiarn for their withdrawal [from] the London Eisteddvod', 1855.