Mae'r gyfres yn cynnwys dyddiaduron Ambrose Bebb, yn bennaf o'r cyfnod yr oedd yn byw ym Mangor ac yn ddarlithydd ar staff y Coleg Normal. Mae'r dyddiaduron, yn bennaf, yn cofnodi ei fywyd teuluol, ei waith yn ddarlithydd ac awdur, bywyd y capel, a'i gyfnodau yn Ffrainc a Llydaw, gyda sylwadau ar ddigwyddiadau cyfoes, yr Ail Ryfel Byd, a dyddiau cynnar Plaid Cymru. Ar y cyfan, mae'r cofnodion yn y dyddiaduron yn eithaf llawn, ac eithrio o 1930 hyd 1936. Mae'r dyddiaduron yn rhedeg o Ionawr hyd Ragfyr oni nodir yn wahanol.

Ceir llythyrau yn deillio o'i gyfnod yn y Llu Awyr adeg yr Ail Ryfel Byd yn y Dwyrain Canol.

Llythyrau, [1935]-[1949], a dderbyniodd adeg yr Ail Ryfel Byd yn bennaf, gan gynnwys rhai oddi wrth Ifor Williams (4), Morris Williams, G. J. Williams (2), R. O. F. Wynne, Iorwerth Peate (4), Aneirin [Talfan Davies] (2), T. Jones Pierce, David Thomas (Lleufer) (3), Moelona, T. E. Nicholas (6), Bob Owen, Robert Herring, Dafydd Jenkins (2), Mari [Ellis], R. T. Jenkins, J. E. [Jones], Cynan (2), Cybi, Cassie Davies (2), Gwyndaf, O. Llew [Owain] a chyfeillion yn y fyddin.

Mae grŵp 1983 yn cynnwys: dyddiaduron Caradog Prichard,1963-1980 (bylchog); gohebiaeth, yn cynnwys llythyrau, 1942-1946, oddi wrth Caradog at ei wraig Mati, tra'r roedd yn gwneud ei wasanaeth milwrol, llythyrau a negeseuon yn ei longyfarch ar ennill y Gadair yn Eisteddfod Genedlaethol Llanelli yn 1962, llythyrau amrywiol,1954-1979, a gyfeiriwyd at Caradog Prichard, llythyrau o gydymdeimlad a dderbyniwyd ar farwolaeth Caradog Prichard yn 1980 a phapurau eraill yn ymwneud â'i farwolaeth; copïau o'i farddoniaeth, yn cynnwys cyfieithiadau Saesneg o'r tair cerdd a enillodd y Goron i Caradog Prichard yn Eisteddfodau Cenedlaethol 1927, 1928 a 1929; dramâu a sgriptiau teledu a radio; gweithiau rhyddiaith ac anerchiadau a baratowyd gan Caradog Prichard, 1963-1977, yn cynnwys nifer heb ddyddiad; deunydd printiedig, 1921-1974, yn cynnwys llawer o dorion o'r wasg; papurau personol, yn cynnwys cyfrifon,1951-1981. Mae grŵp 1994 yn cynnwys: llythyrau, 1945, a ysgrifennodd Caradog Prichard at ei wraig Mati yn ystod ei gyfnod yn y fyddin yn New Delhi, llythyrau, 1946-1987, a anfonwyd at Mati Prichard, llythyrau, cardiau a thelegramau, 1940-1970, a anfonwyd at Caradog a Mati Prichard, cardiau post, 1929-1987, a anfonwyd at Caradog a Mati Prichard; cerddi, rhyddiaith ac anerchiadau yn bennaf gan Caradog Prichard; deunydd personol Caradog Prichard, 1927-1980; a deunydd personol ac amrywiol, 1926-1978, rhan ohono yn ymwneud â Mati Prichard. = The 1984 group comprises: Caradog Prichard's diaries, 1963-1980 (with gaps); correspondence, including letters, 1942-1946, from Caradog Prichard to his wife Mati, during his period of military service, letters and messages congratulating him on winning the chair at the Llanelli National Eisteddfod in 1962, miscellaneous letters, 1954-1979, addressed to Caradog Prichard, sympathy letters received on the death of Caradog Prichard in 1980 and other papers relating to his death; copies of his poetry, including English translations of the three poems which won the Crown for Caradog Prichard at the National Eisteddfodau of 1927, 1928 and 1929; plays and television and radio scripts; prose works and addresses prepared by Caradog Prichard, 1963-1977, including many undated; printed matter, 1921-1974, including many press cuttings; personal papers, including accounts, 1951-1981. THe 1994 group comprises: letters, 1945, from Caradog Prichard to his wife Mati during his army service at New Delhi, letters, 1946-1987, addressed to Mati Prichard, letters, cards and telegrams, 1940-1970, addressed to Caradog and Mati Prichard, postcards, 1929-1987, addressed to Caradog and Mati Prichard; poems, prose writings and addresses mainly by Caradog Prichard; Caradog Prichard's personalia, 1927-1980; and general personalia and miscellanea, 1926-1978, some concerning Mati Prichard.

The file comprises letters to John Douglas Wynne Griffith, 1942-1943, from a friend describing his church career, parish, local economic and social effects of the Second World War.

Letters, 1931-51, to Geraint Dyfnallt Owen from his father the Reverend John Dyfnallt Owen ('Dyfnallt'; 1873-1956), containing personal and family news, comments on the progress of the war, and news of religious, political and cultural affairs in Wales.

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.

Diary for the period 30 September-9 December 1941 of Lady Megan Lloyd George (1902-66), Member of Parliament for Anglesey, 1929-51, and for Carmarthen, 1957-66, containing occasional entries relating to the progress of the Second World War with references to Winston Churchill and other contemporary figures.

Series comprises miscellaneous items from Lord MacDonald's period as Controller of Fuel and Power for the north west of England and north Wales.

The file consists of various printed and typescript materials, including a few press cuttings, 1944-1945, acquired by Eirene White. Most relate to the conclusion of hostilities and the signing of the peace treaties. They include the texts of broadcasts made and speeches delivered by politicians and public figure at this time.

Seventeen letters, 1943-1980, mostly in Welsh, to Glyn Evans (or Ifans), Tregaron, mainly concerned with matters of literary interest. The majority date from the period of Evans's war service as an RAF wireless operator in Ceylon.
The correspondents are Jennie Eirian Davies, 27 August 1979 (f. 1); D. R. Hughes, 1944-1946 (ff. 8, 12-14); R. Williams Parry, 1952 (ff. 15-19); Iorwerth C. Peate, 1943-1980 (ff. 20-22, 24-29); Kate Roberts, 17 October 1946 (ff. 30-31), and Mrs Elizabeth Williams, [c. 1974] (ff. 32-33). Also included is a manuscript draft of an article on Welsh secondary education submitted by Evans to Jennie Eirian Davies for publication in Y Faner, [1979] (ff. 2-7); a copy, [c. 1974], in the hand of Elizabeth Williams, of lecture notes by her husband, Prof. G. J. Williams, on the literary traditions of Cardiganshire (ff. 34-43); newspaper cuttings, [?1944]-[1945] (ff. 9, 23, English); and a programme for Community Hymn Singing in Cross Hands on 14 May 1944 (ff. 10-11, English).

Notebook of Berta Ruck, Aberdyfi, September-December 1939, containing journal entries and comments on the progress of the war. Press cuttings relating to contemporary events, photographs and some forty-six letters and postcards, mostly personal, to the author have been pasted in.
The correspondents include her son Arthur Oliver, October-[November] 1939 (ff. 13-14, 16, 33 recto-verso, 42-44), Ménie Muriel FitzGerald, 2 October 1939 (f. 12 verso), Michael Joseph, October-November 1939 (ff. 12 verso, 40, 59 verso), Anthony Thorne, [1939] (f. 34), Horace Horsnell, 28 November 1939 (f. 59), Harold Nicolson, 21 November 1939 (f. 59a), and Osbert Sitwell, 28 November 1939 (f. 60 verso). There are numerous references in journal and letters to the marriages of both her sons, Arthur and Bill, in October 1939. Among the photographs are one of Ruck (inside front cover) and two of Bill Oliver (inside front cover, f. 36 verso).

A binder containing various documents relating to Kanonier Obergefreiter Kurt Kruger, a WWII Luftwaffe P.O.W held at Camp 70 in Henllan, Pembrokeshire, 1946-1948. Includes Kruger's 'Soldbuch', the standard identity document in the German military. Also includes December 1947 issue of 'Der Wegweiser' (The Signpost) from Henllan Camp, as well as Kruger's certificate of discharge, certificate of registration, ID document for foreigners in Britain, work permit, and passport (1968-1973).

The series comprises drafts of speeches and radio broadcasts made by Gordon MacDonald along with some related correspondence.

File comprises drafts of Gordon MacDonald's contributions to a radio programme entitled "Britain Speaks", broadcast on the Overseas North American Service during the Second World War.

The file comprises papers relating to the wartime events of the years 1940 and 1941.

Notebook of Berta Ruck, September 1943-January 1945, containing a few diary entries, mainly commenting on the war and on the progress of her writing, and pasted-in letters and cards to her, including one each from Sir Maurice Bowra and Emlyn Williams (f. 38 verso). Also pasted in are press cuttings relating to contemporary events, especially the progress of the war, and a few programmes for concerts and plays performed at Aberdyfi, 1942-1944.

Notebook of Berta Ruck, September 1939, recording her move from London to Aberdyfi, Merionethshire, at the outbreak of war and commenting on contemporary events. Press cuttings relating to the war and thirty-five letters and postcards to the author, August-September 1939, mainly from family and friends, have been pasted in.
The correspondents include Oliver Onions, discussing his own move to Aberdyfi, September 1939 (ff. 16 verso, 45, 47, 53 verso, 59, 60, 64), and Tony Thorne, 17 September 1939 (f. 67 verso). She records the engagements of both her sons (ff. 51, 65).

Notebook of Berta Ruck, December 1939-May 1940, containing journal entries, comments on the progress of the war and notes for fiction. Press cuttings relating to contemporary events, other ephemera and some sixty-nine letters, postcards and Christmas cards, mostly to the author, have been pasted in.
The correspondents include Oliver Onions, 25 December 1939 (f. 20), Arthur Oliver, December 1939-May 1940 (ff. 2b, 20 verso, 51, 57, 63-65 verso), Vicki Baum, 25 November 1939 (f. 2), Edith Heal, [December 1939] (ff. 2a, 20 verso), Anthony Thorne, December 1939, March 1940 (ff. 7 verso, 56 verso), Osbert Sitwell, Christmas [1939] (f. 19 verso), Ménie Muriel FitzGerald, [1939] (f. 22 verso), Naomi Jacob, [December 1939] (f. 26 verso), Alys Meirion, 29 December [1939] (f. 27), Lieut-Cmdr Bradwell T. Turner, [February 1940] (f. 47 verso), Alec Waugh, [December 1939] (f. 51 verso), Sir Kenneth Barnes, 4 April 1940 (f. 57 verso), and Horace Horsnell, 2 April 1940 (f. 58). One letter from 'Effie', [January 1940], discusses the state of Ménie Muriel FitzGerald's health (f. 35 verso). The press cuttings include several political cartoons relating to the war (ff. 39 verso, 52-53 verso).

Notebook of Berta Ruck, July 1941-April 1942, containing ideas for fiction, journal entries and comments on the progress of the war. Press cuttings relating to contemporary events and some sixty-six letters, cards, postcards and telegrams to the author, May 1940-April 1942, have been pasted in.
The correspondents include Anthony Thorne, July 1941-January 1942 (ff. 1 verso, 15 verso, 17 verso, 24, 39a), Hermon Ould, 25 July 1941 (f. 1 verso), Emlyn Williams, [1941] (f. 4 verso), Baron Atkin of Aberdovey, 20 November 1941 (f. 18 verso), Edith Heal, [Christmas 1941] (f. 33), Able Seaman E. J. Smith, HMS Cossack, 2 May 1940 (f. 36 verso), Alice Williams, 2 March [1942] (f. 38 verso), and Alec Waugh, 19 February 1942 (f. 47 verso). The journal includes a description of a visit to her sister's house in Llanfachreth, Merioneth, October 1941 (ff. 5, 6, 7, 8, 9).