A journal of a visit to Brittany, 10 July-8 August 1933, by Geraint Dyfnallt Owen and his parents, containing references to Breton political and cultural activities including comments on the nationalist movement and accounts of meetings with prominent activists.
Diaries of Geraint Dyfnallt Owen, comprising diary entries in Welsh, 9-23 January 1928, as an undergraduate student at Aberystwyth (MS 23325B); diaries, mainly in English, 8 February-3 December 1931, while at Oxford (MSS 23326B-23327A, the latter also including an account of a visit to Brittany, 23 July-7 September 1931); and diaries spanning the period spent as a Research Fellow of UCW, Aberystwyth, 1932-1936 (MSS 23328-23333A), and as a member of staff of the BBC in Cardiff and Swansea, 1937-1938 (MSS 23334-23336B) and London, 1940-1941 (MS 23337B). This last diary, written in Welsh, contains a commentary on the progress of the Second World War, including the background to certain events and forecasts concerning their outcome.