A collection of 4087 items relating to the Hughes and Hughes-Hunter family of Plas Coch (Llanedwen) and Brynddu (Llanfechell), Anglesey, and consisting of, title deeds and documents referring to properties in Aberalaw, Aberffraw, Amlwch, Bodafon, Bodegri, Bodelgyfarch, Bodfordd, Bodffyddion, Bodfilog, Bodlew, Bodrida, Bodrwyddyd, Bodronyn, Cadnant, Caerdegog, Caeregwy, Cefnyfyrwen, Celleiniog, Cleifiog, Conysiog, Lys, Cornwy Lan, Dwyran Feuno, Eiriannell, Gronant, Gwydryn, Hendre Rhosfair, Heneglwys, Holyhead, Llanddaniel-fab, Llanddeusant, Llanddyfnan, Llandegfan, Llandrygarn, Llanedwen, Llaneilian, Llanfaethlu, Llanfechell, Llanfihangel-yn-Nhywyn, Llangefni, Llangeinwen, Llanrhuddlad, Llantrisant, Lledwigan Llys, Maesoglen, Newborough, Penhwnllys, Penmynydd, Rhosfair, Trefadog, Trefarthen, Trefdraeth, Trefirior, Trefowen, Tyndryfol, Ucheldref, Ynys Keryd and Ysgeifiog, co. Anglesey; Bangor, Caernarfon, Clynnog, Conway, Dinorwig, Llanbeblig, Llanddeiniolen, Llandegwning, Llandwrog, Llanfihangel-y-Pennant and Llanrug, co. Caernarvon and Hiraddug, Is-glan, Kinnerton and Soughton, co. Flint, 1438-1903; rentals and valuations of the Plas Coch and Brynddu estates, 1792-1933; family, personal and estate correspondence (amongst the topics referred to are the banquet given to George Stephenson, builder of the Britannia Tubular Bridge, 27 August 1851, and the deliberations of the Llandudno Improvement Commissioners, 1862-1890), 1789-1917; papers and documents relating to railway developments in the United Kingdom (including North Wales) during the 1840's; documents and papers bearing on the elections of 1837, 1841, 1847, 1851 and 1859 in the Caernarfon boroughs (including 'check', canvass and poll books for the 1837 and 1859 elections; expense accounts of the 1841 election and correspondence); estate maps and plans, 1814-1853.
Among the personalities represented in the collection are: David Lloyd ap Hugh ap Llywelyn ap Ieuan of Porthamel (will dated 11 March, 1573/4), Hugh Hughes (copy will dated 20 June 1603), Roger Hughes (I) (copy will dated 29 May, 1646), Hugh Hughes (II), Roger Hughes (II), Hugh Hughes (III), the Rev. Robert Hughes, vicar of Llanidan; William Hughes (copy will dated 19 February, 1802), Sir William Bulkeley Hughes, his son William Bulkeley Hughes (will dated 25 May, 1887) and Charles Hunter. Also included are letters from William Ewart Gladstone to William Bulkeley Hughes, 1856-1880.