Papers of Aber Research, an organisation founded by the donor to conduct opinion polls and gather statistical information on behalf of Plaid Cymru during the 1990s, including a background paper, opinion poll reports, General Election statistical reports, correspondence, press cuttings and related documents.

File contains election addresses, a rosette and other material distributed in and used during the Ceredigion constituency during the 2017 General Election campaign.

File contains election addresses and other material distributed in the Ceredigion constituency during the 2019 General Election campaign.

Leaflets relating to the campaign for an elected mayor for Ceredigion.

Papers relating to the 2000 By-election for Ceredigion constituency, including results and details of persons nominated, party statements, press cuttings, and campaign material.

Further papers relating to the 2005 UK General Election, including profiles of Conservative candidates for all Welsh constituencies; campaign material for Ceredigion constituency, including for Mark Williams; John Harrison; Alun Davies; and the Green Party; and a small number of printouts from web pages.

Campaign material, election addresses and statements of persons nominated for the 2010 UK General Election for the constituencies of Caerphilly, Cardiff Central, Cardiff North, Cardiff South & Penarth, Cardiff West, Carmarthen East & Dinefwr, Carmarthen West & South Pembrokeshire, Ceredigion, Clwyd South, Clwyd West, Cynon Valley, and Vale of Clwyd.

Campaign material, election addresses and statements of persons nominated for the 2015 UK General Election for the constituencies of Caerphilly, Cardiff Central, Cardiff North, Cardiff South & Penarth, Cardiff West, Carmarthen East & Dinefwr, Carmarthen West & South Pembrokeshire, Ceredigion, Clwyd South, Clwyd West, Vale of Clwyd, and Cynon Valley.

Campaign material and election addresses of candidates for the 2017 UK General Election for Ceredigion constituency.

Campaign material and election addresses for candidates standing in the 2007 Welsh Assembly election, for the constituencies of Caerphilly, Cardiff Central, Cardiff North, Cardiff South & Penarth, Cardiff West, Carmarthen East & Dinefwr, Carmarthen West & South Pembrokeshire, Ceredigion, Clwyd West, and Vale of Clwyd.

Campaign material and election addresses for candidates standing in the 2016 Welsh Assembly election, for the constituencies of Cardiff Central, Cardiff South & Penarth, Cardiff West, Carmarthen East & Dinefwr, Vale of Clwyd, Clwyd West, and Ceredigion. The file also includes a 2015 constituency report for Mark Drakeford.