The collection chiefly compiles Lady Onslow's personal letters written to her parents and sister "Jim" from her travels in Churchill's service. They provide first hand evidence of her experiences and include lively recollections of Churchill, descriptions of her work and colleagues, and descriptions of journeys, accommodation and surroundings. The letters are supplemented by a small number of photographs and other mementos.

The material deposited at Churchill Archives Centre by Dr Piers Brendon relates to two documentaries "The Churchills" and "The Windsors".

Copies of letters by Howard-Johnston describing his wartime service, including his work as Director of the Anti-U-Boat Division, and as captain of HMS Bermuda, with the British Pacific Fleet (1947). Subjects include: Cabinet Anti-U-Boat meetings; difficulties with the lack of understanding at the Admiralty of anti-U-Boat operations; German success in evading Asdic; service with Admiral Sir Denis Boyd [Commander-in-Chief, British Pacific Fleet].

The papers include: correspondence from the 1960s to the 2000s, with some papers relating to the Anti-Submarine Experimental Establishment (1942) and naval radar research (1944-45); volumes of notes on experiments from 1947 to 1979; research papers and data files from the late 1970s to 1990s.

Signals from the raid on St Nazaire

Papers and correspondence relating to his books on World War II. The papers are mostly organised round the different books that Ronald Lewin published and, for the most part, comprise correspondence with Lewin or his notes from interviews with people who were colleagues of the military leaders about whom he wrote or who worked in operations he was describing.

The papers comprise signals, letters and miscellaneous papers relating to Admiral Cunninghame Graham's Naval service in both world wars and the inter-war period; his correspondence with Professor Arthur Marder and his correspondence on the subject of the libel action brought by Captain Jack Broome, RN, against David Irving for his book on convoy PQ 17; and papers, press-cuttings and recollections dating from the 1950s, 1960s and 1970s.

Papers relating to economic policy, including correspondence, diaries, notes, articles, speeches, a draft autobiography and photographs.

Papers comprising correspondence, official reports and press cuttings.
With correspondence and notes of Ralph Barker, author of 'The Blockade Busters', 1974-80.
Mainly in English, with some items in Swedish, Norwegian, Finnish and French.

These files mainly contain routine correspondence and reports regarding the early development of the atomic bomb.

The material held at Churchill Archives Centre mainly consists of Colville's diaries. They provide an insight into the decision-making of three Prime Ministers and the meetings held with other top officials, as well as the lives of key figures during World War II, and its aftermath.

Personal and scientific papers

These papers mostly consist of correspondence and articles. The papers all deal with intelligence matters such as access to wartime records, claims of espionage, memories of wartime code-breaking-related activities and publications by former Bletchley Park staff or about Bletchley Park.

The papers consist principally of letters, journals and photographs relating to the service of Harold Arthur Thomas Fairbank in the South African War and First World War, and of Thomas John Fairbank in the Second World War.

"Before I forget", annotated draft of Hughes-Hallett's memoir on Combined Operations, 1941-5, including his memoir of the Dieppe Raid and the planning for D-Day (Operation Overlord); with a letter to him from Winston Churchill MP (Prime Minister), 19 September 1954

The papers include correspondence with naval historians and with colleagues on the Naval Review, some personal papers, reminiscences and records and also narratives from Japanese prisoner of war camps.

The papers chiefly consist of correspondence, naval messages and photographs from Edelsten's time with the Mediterranean and Pacific Fleets.

Colour film reel shot by Courtenay, mainly from his experiences in the Second World War, including footage of Winston Churchill in Canada and giving the "Iron Curtain" speech, 1946, and footage of American forces in the Pacific.

The collection of material held at Churchill Archives Centre relates to the preparation of the documentary and includes research notes and correspondence; transcripts and videotapes of interviews, film footage and of the documentary.

These albums include photographs from throughout Churchill's life, particularly the conferences during the Second World War between himself, Franklin Roosevelt and Joseph Stalin.