Papers of Lady Kathleen Liddell Hart chiefly relating to Capt Sir Basil Liddell Hart and Adrian Liddell Hart, [1929-1997].Papers relating to Basil Liddell Hart including typescript transcripts of his appointment diaries, 1940-1953; draft of History of the Second World War by Basil Liddell Hart and Kathleen Liddell Hart's related correspondence with the publisher Cassels; letters from Basil Liddell Hart to Jessie Liddell Hart; Basil Liddell Hart's wallet; drafts of letters, lectures and articles by Basil Liddell Hart, 1929-1969; papers of Basil Liddell Hart on the history of fashion and manners; press cuttings including with quotations from Basil Liddell Hart's writings and book reviews of his work; letters relating to Basil Liddell Hart's death; papers relating an exhibition on the life of Basil Liddell Hart, 1977; papers relating to the centenary of Basil Liddell Hart's birth, 1995; Kathleen Liddell Hart's correspondence with researchers on Basil Liddell Hart, 1971-1980s; correspondence with solicitors about Basil Liddell Hart's estate and papers relating to royalties, 1981-1990.Papers relating to Adrian Liddell Hart including Basil Liddell Hart's correspondence on Adrian Liddell Hart, 1939-1952; letters from Basil Liddell Hart to Adrian Liddell Hart, 1939-1965; letters from Adrian Liddell Hart to Basil Liddell Hart, 1935-1948; letters from Kathleen Liddell Hart to Adrian Liddell Hart; letters to Adrian Liddell Hart, 1952-1991; typescript drafts of Adrian Liddell Hart's [unpublished] books 'Unconditional Surrender' a novel based on his time serving on control commission, Berlin. (London, Nov 1950) and 'The State of Canada'; sympathy letters on the death of Adrian Liddell Hart; papers relating to winding up the estate of Adrian Liddell Hart and obituaries.Personal photos of Basil Liddell Hart and Kathleen Liddell Hart; Kathleen Liddell Hart's correspondence, chiefly 1970s-1990s but also including early letters from Basil Liddell Hart and letters to her family, 1940-1946; Kathleen Liddell Hart's appointment diaries; guest books; draft of Kathleen Liddell Hart's memoirs, and correspondence with the editor, Jennifer Schofield; tributes to Kathleen Liddell Hart and drafts of a book on Richard Aldington by Frank Crawford and related correspondence.

Publications, 1939-1956 relating to World War Two, comprising: 'Final report by the Rt Hon Sir Neville Henderson, GCMG, on the circumstances leading to the termination of his mission to Berlin, September 20 1939' (HMSO, 1939); 'The outbreak of war, 22 August-3 September 1939' (Ministry of Information, 1939); 'Documents concerning German-Polish relations and the outbreak of hostilities between Great Britain and Germany on September 3, 1939' (HMSO, 1939); 'The battle of Egypt' (Ministry of Information, 1943); 'The Army at war: Tunisia' (Ministry of Information, 1944); 'Nations at war' (Ministry of Information, 1945); 'German, Italian and Japanese U-Boat casualties during the war' (HMSO, 1946); 'Report by the Supreme Allied Commander Mediterranean to the Combined Chiefs of Staff on the operations in Southern France, August 1944' (HMSO, 1946); 'Strength and casualties of the Armed Forces and Auxiliary Services of the United Kingdom, 1939-1945' (HMSO, 1946); 'Ships of the Royal Navy statement of losses during the Second World War' (HMSO, 1947); 'British merchant vessels lost or damaged by enemy action during Second World War' (HMSO, 1947); 'Report by the Supreme Allied Commander Mediterranean to the Combined Chiefs of Staff on the Italian Campaign: Part 2, 10 May 1944 to 12 August 1944: Part 3, 13 August 1944 to 12 December 1944' (HMSO, 1948); 'The Second World War, 1939-1945: a list of British naval anniversaries' (produced by Department of Naval Information [1949]); 'Report to the combined chiefs of staff by the Supreme Allied Commander South East Asia, 1943-1945' (HMSO, 1951); 'The Italian campaign, 12 December 1944 to 2 May 1945: a report to the Combined Chiefs of Staff by the Supreme Commander Mediterranean Field Marshal The Viscount Alexander of Tunis' (HMSO, 1951); and 'The official names of the battles, actions and engagements fought by the Land Forces of the Commonwealth during the Second World War, 1939-1945' (HMSO, 1956).