The file comprises letters and cards to Darren Millar from various correspondents including the Bishop of St Asaph, Andrew R. T. Davies, Boris Johnson, Teresa May, Rishi Sunak, Matt Lane, Richard Holden, Byron Davies, Craig Williams, David Jones, David Cameron, Richard Minshull, Lord Feldman of Elstree, Nick Bourne and Cheryl Gillan.

Correspondence regading Peter Temple-Morris selection as candidate, functions within the constituency and the wider Conservative Party along with some campaign materal from the 1959 general election in the Cardiff North constituency.