Papers, 1881-1926; notably war diaries of the 3 Hussars during World War One, 1914-1919; private diary of Willcox, 1914; intelligence summaries with translated extracts from German documents, 1917-1918; typescript account of the 3 Hussars at Warneton, Belgium, Oct 1914; typescript account of the action of the 3 Hussars at Liez, France, March 1918 and near Hourges, France, Apr 1918; aerial photographs showing trench network, Beaucamp, France, 1916; copy of a diary by Willcox compiled during the siege of Ladysmith, South Africa, with two popular printed commemorative volumes describing the siege, 1899-1900; diary by Willcox of a visit by him as an observer of German army manoeuvres, Berlin area, with photographs, 1909; letters sent by Willcox to his parents and other relatives, 1881-1900; photographs of India, South Africa during the Boer War, in 1910 and the Western Front during World War One, showing groups of soldiers, equipment, the interiors and exteriors of buildings, including in Pretoria, of military exercises, parades, preparation for possible gas attack and of French chateaux, [1889-1919]; various papers compiled by Willcox during the compilation of his history of the 3 Hussars including operational summaries, biographical information and drawings and photographs, with reviews of Willcox's publications, 1908-1926; watercolours of the French landscape during World War One; manuscript hunting journal including detailed diaries and records of pig-sticking, tiger shooting and other hunts in Africa, Scotland and India, 1894-1932; colour illustrations of soldiers in various antique constumes.

Papers relating to his command of 1 Infantry Div, Anzio, Italy, 1944, dated 1943-1962, principally comprising correspondence and memoranda, 1943-1944; diary and typescript diary entries, 1943-1944; operation orders, tactical notes and maps, 1944; written accounts of operations carried out by 1 Div and individual regiments and battalions, 1944; correspondence relating to historical accounts of the landings, 1945-1962, notably Anzio by Wynford Vaughan Thomas (Longmans, London, 1961). Other papers relating to his life and career, 1920-1958, notably including an article by Penney on his service in Wazaristan, India, 1937, reprinted from the Royal Signals Quarterly Journal, Oct 1938 and Jan 1939; memoranda from General Staff, Shanghai, from the City Government of Shanghai and from W R Connor Green, British Embassy, Tokyo, concerning relations between the Chinese and Japanese, and the role of the British garrison in the protection of Shanghai, 1931-1933; diary, 1932, referring principally to matters affecting British troops in Shanghai; press cuttings, [1932]; anti-Japanese propaganda posters produced by the Shanghai Municipality National Salvation Committee to Resist Japan, [1932]; itinerary of Penney's movements in the Middle East and North Africa, 1941-1943; diary, 1943-1944, including description of Allied Forces HQ, Algiers, and reflections on the differences between US and British signals procedure; official and personal correspondence relating to his service as Director of Intelligence, HQ Supreme Allied Commander, South East Asia, [1945].

The MAGIC Documents: Summaries and Transcripts of the Top-Secret Diplomatic Communications of Japan, 1938-1945, is a themed microfilm collection relating to US deciphers of Japanese diplomatic codes through the use of MAGIC decryption, 1938- 1945. The collection contains copies of deciphered official and unofficial Japanese diplomatic communiqués sent from Japanese personnel stationed at embassies and consulates in the Far East, Europe and the Middle East, to Tokyo, Japan, 1938-1945, and includes material relating to Japanese civil, political and economic conditions and policies, military expenditures, strategy, tactics, and campaigns, and eventual peace initiatives and surrender, 1938-1945. Included in the collection are deciphered messages concerning Japanese perceptions of Allied strategy against Japan; the effect of Allied air raids on Japan; Japanese relations with the German Foreign Office; Japanese relations with the governments of Burma, Indo-China; Korea, Netherland East Indies, Siam, China, the Philippines; perceptions of Allied chemical warfare capabilities; perceptions of Allied Lend-Lease naval forces and strategy; British and French relations with colonies in the Far East; control of industry in Manchuria (Manchukuo); perceptions of Axis strategy and Japan's role within it; Japanese interest in Indian nationalism and the Indian Independence League; the Burma-Siam railway; Japanese attacks on the Burma Road, the supply route which connected Burma to Generalissimo Chiang Kai- Shek's nationalist forces in China; administration of the government of Japanese occupied Nanking, China; the Chinese Communist Party; the rationing of clothing and food in Japan; perceptions of the Soviet Comintern Pact; Japanese relations with German, European, and Chinese banks; Japanese relations with Spanish Gen Francisco Franco Bahamonde, the German High Command and Italian Prime Minister Benito Mussolini; interpretation of the Greater East Asia Co-Prosperity Sphere; concern for Japanese nationals abroad, 1937-1945; Japanese naval strategy and tactics; function of the Japanese Consular Police, China; territorial claims on the Kurile Islands; material relating to Japanese military campaigns during World War Two; Japan's search for strategic resources in the Far East; military strengths and dispositions of the German Armed Forces; the origins of the Russo-Japanese Neutrality Pact; Allied and Axis propaganda methods; the treatment of Allied prisoners of war; the surrender of Japanese armed forces in the Far East.

Papers relating to Crick's service in the Western Desert, 1941-1943, as Instructor, War Intelligence Course, School of Military Intelligence, Matlock, Derbyshire, 1943-1944, and with Operational Intelligence, G2 Division, Supreme Headquarters Allied Expeditionary Forces (SHAEF), 1944-1945, including copy of War Diary, General Staff Intelligence Branch, Headquarters 8 Army, 25 Sep-31 Oct 1941; typescript memorandum by Crick 'The possible effect of CROSSBOW on OVERLORD', on how Operation CROSSBOW, (Allied countermeasures against German V-weapons), could influence Operation OVERLORD, (the Allied invasion of occupied Europe), Mar 1944; typescript memorandum by Crick 'The heart of Germany', on the importance of the Ruhr industrial region to Allied strategy, Mar 1944; typescript report by Crick on visit to OKW (Oberkommando der Wehrmacht, the German Armed Forces High Command), Flensburg, Germany, 11 May 1945. Papers relating to Crick's service with the British Joint Services Mission, Washington DC, USA, 1953-1956, including typescript text of lecture by Maj Gen Sir Kenneth William Dobson Strong, Director of Joint Intelligence Bureau, on UK and US Intelligence collaboration and spheres of influence [1953]; typescript memorandum 'Probable Bloc preoccupations in Asia, including Middle East, until mid 1955' [1953]; papers relating to the reorganisation of the Economic and General Division of the Joint Intelligence Bureau, 1956. Papers relating to the Imperial Defence College tour of Pakistan, India, East Pakistan, Ceylon and Aden, Aug-Sep 1960, including itineraries, travel arrangements, three photographs, invitations and a printed map of the Middle East showing oil wells, refineries and pipelines, 1960. Manuscript and typescript notes for a lecture by Crick entitled 'A career in Intelligence', given at Intelligence Corps course, with one audio tape of 20 minute lecture by Crick on interrogation techniques, Ashford College, Kent, Oct 1984. Edition of In the caves of the mind. Poems by Alan Crick (Privately published, Rye, Sussex, 1992). Newspaper cuttings, photographs and publications, 1938-1959, including German newspaper cuttings relating to the visit to Danzig by Rt Hon Alfred Duff Cooper, First Lord of the Admiralty, Aug 1938; three editions of Battledress. The Cadet magazine, Feb-Jun 1940; nine editions of The Crusader Eighth Army Weekly, Oct 1942-Apr 1943; sixteen editions of 'Interim. British Army of the Rhine Intelligence Review', Jun 1945-Apr 1946; three editions of 'Occupation. British Army of the Rhine Intelligence Review', May-Jul 1946. Edition of '21st (British) Army Group in the campaign in North West Europe 1944-1945. Lecture by Field Marshal Sir Bernard L Montgomery to the Royal United Service Institution, London, October 1945'; six photographs and five copies of photographs of Crick, Western Desert and Germany, 1941-1945, and two group photographs, Staff and Students, Joint Services Staff College, 1948, and Military Attachés Conference, Episkopi, Cyprus, 1959.