Papers relating to operations of 20 Corps in Palestine, 1917-1918, including third Battle of Gaza; correspondence including with Gen Sir Kenneth Wigram, 1935, and FM Sir Philip Chetwode, 1926-1936, with related papers, 1911-1950; Bartholomew Committee, Jun 1940 including operations in Flanders, organisation and training of troops; Northern Command and civil defence, 1940-1945.

Look back with pleasure', typescript memoirs covering his life and career, 1897-1965, notably his service in Mesopotamia and Palestine, 1915-1918, India, 1919-1925 and 1957-1962, Africa, 1939-1944, Germany, 1945-1950, and Cyprus, 1964-1965, written in 1971.

Letters to his wife, Elizabeth Montgomery Carr, 1914-1940, including service on the Western Front during World War One, 1915-1918, in India, 1920-1926, and with 2 Infantry Bde, in Palestine, including details of Arab and Jewish unrest and the policing of the area by the British Army, 1936-1937. Certificates recording mentions in despatches during World War One, 1915-1918 and Warrants of Appointment for DSO, 1917 and OBE, 1919.

Copies of papers and photographs relating to Chamberlain's life and career, 1906-1970, including unpublished manuscript memoirs, 1906-1923; papers relating to pay and postings, 1915-1949; account of service with Royal Flying Corps, 1916-1917; typescript report on visit to Palestine, 1920; papers relating to service as Education Officer, London District, 1924-1928, including typescript official report by Chamberlain to Maj Gen Walter Patrick Hore- Ruthven, 2nd Baron Ruthven, General Officer Commanding London District on visit to the Army of the Irish Free State, 1926; papers relating to service as Education Officer, Headquarters Presidency and Assam District, India, 1934-1938, including letters from Maj Gen John Standish Surtees Prendergast Vereker, 6th Viscount Gort, 1934-1937, Maj Gen George Mackintosh Lindsay, 1938 and Brig Eric Edward Dorman Smith, 1938, and typescript account of tour of Tibet, 1937; uncaptioned photographs of tour of Tibet, 1937; article by Chamberlain from The Journal of the Army Educational Corps, on the Tibet tour, 1938, also two articles from The Journal of the Royal Army Educational Corps, on a visit by HM Queen Elizabeth II in Jul 1950 to the Army College, Wellbeck Abbey, Nottinghamshire (1951), and on the Command Education Officers' Conference, 1951, including printed photograph of all officers, including Chamberlain, still serving with the Royal Army Educational Corps who were commissioned into the Army Education Corps on its formation in 1920, with texts of speeches, 1953 and 1955; correspondence including letters from Gort thanking Chamberlain for sympathy on the death of his son, Lt Hon Charles Standish Prendergast Vereker, Grenadier Guards, and on the Governorship of Gibraltar, 1941, and letters from Gen Sir Richard Nelson Gale and Gen Sir James Stuart Steele, congratulating Chamberlain on the award of the CBE, 1956-1957; reports and memoranda relating to service as Chief Education Officer, British North Africa Force, 1943-1945 and Middle East Land Forces, 1947-1948; press cuttings, 1953-1958 and obituaries, 1970-1971.

Typescript draft of 'The memoirs of a professional soldier in peace and war', an unpublished account of Clarke's career in the army, including service in Gallipoli and Palestine during World War One, 1968; various papers and pamphlets collated by Clarke, mainly relating to the training and performance of the Royal West African Frontier Force, 1923-[1960]; articles written by Clarke and published in British and African journals and periodicals, 1926-1959; printer's transparencies of maps used by Clarke in Part Two of the History of the Royal West African Frontier Force (Gale and Polden, Aldershot, 1964).

Papers, 1814, 1857-1963, of Field Marshal Sir John Greer Dill and his family. Papers relating to Dill's family and family estates date largely from 1857-1953, but include press cuttings, 1814. The collection mainly comprises papers, telegrams and photographs relating to Dill's life and military career, dating from 1901-1944 but particularly from 1914 onwards, and includes correspondence and other papers concerning his service as General Staff Officer 1, 37 Division, and General Staff Officer 1, Operations Branch, General Headquarters, British Armies in France, Western Front, World War One, 1917-1918, notably instructions to 37 Division, 1917; 15 Division Operational Orders for the Battle of Arras, 1917. Official and some personal correspondence and notes, 1916-1939, including record of the advance of the Egyptian Expeditionary Force, 1919; lecture notes relating to Dill's service as Chief Instructor, Staff College, Camberley, Surrey, 1920, and to his promotion to Lt Gen, 1936; letters from Captain Basil Henry Liddell Hart, Maj Gen Sir Sydney Frederick Muspratt, Maj Gen Arthur Cecil Temperley, and Maj Gen John Dudley Laverack, 1926-1939; correspondence with Field Marshal Sir Cyril John Deverell, Chief of the Imperial General Staff, relating to Dill's service as General Officer Commanding, Palestine and Transjordan, Sep 1936-Jul 1937. Official correspondence relating to Dill's command of 1 Army Corps France and Belgium, 1939-1940, principally including correspondence between Maj Gen Sir Henry Royds Pownall, Chief of General Staff British Expeditionary Force (BEF), and Lt Gen Ronald Forbes Adam, General Officer Commanding 3 Army Corps, Sep-Oct 1939; correspondence between Dill and Maj Gen Hugh Royds Stokes Massy, Deputy Chief of the Imperial General Staff. and Chief of General Staff Maj Gen Henry Royds Pownall, Oct 1939; correspondence with US Gen George Catlett Marshal, Chief of Staff US Army, relating to Joint Planning Committee, Mar 1940; correspondence on liaison arrangements between the French and British armies in France, Oct 1939, and letter to Dill as Chief of Imperial General Staff, from Lt Gen Claude John Eyre Auchinleck, General Officer Commanding in Chief, Southern Command, Nov 1940. Typescript report relating to imposition of economic sanctions against Ireland due to the refusal of permission for the use of Irish ports by the Royal Navy, Nov-Dec 1940, with letter from Maj Gen Hubert Jervoise Huddleston, General Officer Commanding Northern Ireland District, to Gen Bernard Paget, Chief of Staff, Home Forces, explaining the need for an appreciation of the political situation in Ireland, Jun 1940. Semi-official letters, diaries and notes to Dill as Chief of the Imperial General Staff, War Office, London, 1940-1941, including letter from Rt Hon (Arthur) Neville Chamberlain, Lord President of the Council, Aug 1940, official diary of tour of the Mediterranean, Feb-Apr 1941, correspondence congratulating promotion to Field Marshal, 1941; copy of personal minutes of Prime Minister, Rt Hon Winston (Leonard Spencer) Churchill, May 1941; notes on Dill's visit to Paris, France, with Prime Minister Churchill, including diary of events, May 1940; typescript notes on telephone conversation with Rt Hon (Robert) Anthony Eden, Secretary of State for War, Nov 1940; correspondence with Field Marshal Rt Hon Jan Christian Smuts, Prime Minister and Minister for Defence, Pretoria, South Africa, Nov 1941,Gen Bernard (Charles Tolver) Paget, Commander in Chief Home Forces, Nov 1941, Lt Gen Arthur Nugent Floyer-Acland, Secretary to the Secretary of State for War, Nov 1941. Letters and notes relating to Gen Sir Archibald Percival Wavell, Commander-in-Chief India, including notes on operations in Greece, the defence of Egypt, Palestine and Crete, Sep 1941, and personal letter from Lt Gen Claude John Eyre Auchinleck, Commander-in-Chief, Middle East Command, regarding Prime Minister Churchill's negative attitude to Gen Wavell, May 1941. Four albums of photographs relating to Placentia Bay Conference, Newfoundland, Canada, Aug 1941, official visit to Canada, Aug-Sep 1943, and the Casablanca Conference, code name SYMBOL, Jan 1943, including the Prime Minister, Churchill, aboard HMS PRINCE OF WALES and aboard USS AUGUSTA 1941.

Copy of 'NCO', typescript memoir of his service as a non-commissioned officer in France, 1916 and 1918, Salonika, [1916-1917], and Palestine, [1917-1918] written in [1932] under the pseudonym Sgt John Francis, with sketches by Pte James Browning, 1916-1918.

A collection of twentieth century maps formerly held by the Map Library of King's College London. A large number of maps in the collection relate to World War One. These were either produced for military use, as in the case of the British maps published by the Geographical Section, General Staff (GSGS), 1909-1918, or were produced subsequently to illustrate World War One battles and campaigns, such as the set of tracings of the strategic development of the battle of Jutland, 1916, the War Office Historical Section (Military Branch) maps of the campaign in Palestine, 1917-1918, published 1927-1929 and the French and German maps. There are several later Geographical Section, General Staff (GSGS), maps produced 1935-1953, including maps published during World War Two and a map of the area of Cassino, Italy, compiled and reproduced by 12 Polish Field Survey Company, Dec 1945. The final section consists of a number of maps and diagrams produced for use in Staff College entrance and staff/promotion examinations, 1955-1962

Papers of Major General Sir Frederick Barton Maurice, relating to his letter to the press concerning the government's statements about the strength of the British Army, May 1918, dated 1917-1971, principally comprising Maurice's diary, Jan-May 1918; printed and typescript texts by Maurice, 1918-1919, 1922, notably including 'The story of the crisis of May 1918', dated 1918; correspondence with family and colleagues, 1918-1922, 1925, 1934, 1936; newspaper cuttings, 1918, 1936, 1939; copies of Parliamentary and War Cabinet papers, 1918; correspondence relating to The Maurice Case (Leo Cooper, London, 1972) by Nancy Maurice (Nancy Spears, wife of Maj Gen Sir Edward (Louis) Spears, 1st Bt), 1967-1971. Papers collected by Maurice during the writing of The life of General Lord Rawlinson of Trent (Cassell and Co, London, 1928) and Haldane (Faber and Faber, London, 1937, 1939), comprising letters received by Rt Hon Richard Burdon Haldane, 1st Viscount Haldane, 1894, 1898, 1902, 1915-1916, 1919, 1928; letters received by Henry Seymour Rawlinson, 1st Baron Rawlinson of Trent, 1888, 1914-1916, 1918, 1921, notably including letters from Maj Gen Henry Hughes Wilson and Gen Sir Alexander John Godley concerning the Battle of the Aisne, Sep 1914 and operations at Gallipoli, 1915.

Other papers relating to his life and career, 1888-1951, dated 1888-1971, principally comprising letters to his wife describing his service in South Africa, 1899-1900, and as General Staff Officer, 3 Div, France, 1914-1915, and Director of Military Operations, Imperial General Staff, 1915; correspondence, 1915-1919, relating to his service as Director of Military Operations, 1915-1918, notably including letters from Maj Gen Archibald Armar Montgomery-Massingberd, Maj Gen John Humphrey Davidson, Lt Gen Sir George (Norton) Cory, Lt Gen Sir William Raine Marshall, Maj Gen Sir Arthur Lynden Lynden-Bell concerning operations on the Western Front, 1916-1917, and in the Balkans, 1916-1917, Mesopotamia, 1917-1918, and Palestine, 1917; correspondence with Gen Sir Charles Harington Harington, [1923], 1925, 1932, 1934; printed and typescript articles, lectures and other writings, 1913-1943, notably including text of 'On the uses of the study of war', his inaugural lecture as Professor of Military Studies, London University, 1927, text of Maurice's Lee Knowles lecture 'Public opinion in war', and articles on arms limitation, 1921, 1926, the Graeco-Turkish War, 1922, the Corfu Incident, [1923], and the possibility of war between the USA and Japan, 1925; newspaper cuttings, 1912-1919, 1924-1927, 1938, 1945, 1951, principally comprising reviews of his books. Family papers, [1806-1812], principally comprising papers relating to Maurice's grandfather, Frederick Denison Maurice, [1833-1869], 1927; papers relating to his wife's family, [1806-1812], 1874-1879, 1896, 1909-[1915], 1921, notably including personal letters written by her great-grandfather, Spencer Perceval, [1806-1812], and an account of a day during the Paris Commune, written in [1871] by [Norman Spencer].

Pre-war papers and correspondence, 1898-1914, including lectures, texts and notes written whilst Commandant of the Staff College, Camberley, Surrey. Papers relating to his service as Quartermaster General to the BEF (British Expeditionary Force), Western Front, 1914-1915, including correspondence with Maj Gen Sir Stanley Brenton von Donop, Master General of the Ordnance, and Maj Gen Sir John Steven Cowans, Quartermaster General to the Forces, relating to supplies of equipment, provisions and munitions. Papers and correspondence, 1915, as Chief of General Staff, BEF (British Expeditionary Force), Western Front, principally comprising reports and memoranda prepared for the War Office and the War Council by General Headquarters Staff, 1915; memoranda relating to general military strategy, 1915, notably in the Balkans, Dardanelles, Gallipoli and Egypt; papers in French concerning the Allied Conference at Chantilly, 1915. Papers relating to service as Chief of the Imperial General Staff during World War One, 1915- 1918, principally comprising Army Council and War Cabinet papers relating to manpower, 1915-1918; papers of FM Horatio Herbert Kitchener, 1st Earl Kitchener of Khartoum and Broome, Secretary of State for War, given to Robertson following Kitchener's death in Jun 1916; personal telegrams, 1916- 1917, mainly comprising unofficial messages to and from various army commanders and military attachés in Salonika, Russia, Egypt, Mesopotamia, Italy, Romania, Palestine and the Western Front; memoranda and papers on military operations in the Middle East, 1915-1917, and general strategy, 1917-1918, prepared by Robertson for the War Cabinet; documents relating to the creation of the Allied Supreme War Council, and its various powers and functions, 1917-1918. Papers created as Commander in Chief, Eastern Command and Home Forces, 1918-1919, consisting of inspection reports of various depots and units in the UK, and general correspondence. Papers created as General Officer Commanding in Chief, BAOR (British Army of the Rhine), 1919-1920, including printed memoranda by French Marshal Ferdinand Foch, Allied Supreme Commander on the Western and Italian Fronts, on the conditions required to ensure peace in Europe, 1918-1919; papers relating to the organisation and functions of the British Zone of Occupation in Germany, 1919; correspondence with Gen Sir Henry Hughes Wilson, Chief of the Imperial General Staff, the Rt Hon Winston (Leonard Spencer) Churchill, Secretary of State for War, and Maj Gen Sir Charles 'Tim' Harington Harington, Deputy Chief of the Imperial General Staff, 1919; inspection reports of BAOR (British Army of the Rhine) units, 1919. Private correspondence, mainly relating to Robertson's work during World War One, including correspondence with Lt Col Arthur John Bigge, 1st Baron Stamfordham, Private Secretary to HM King George V, 1914-1918; Maj Gen Charles Edward Callwell, Director of Military Operations at the War Office, 1915; Gen Sir Archibald (James) Murray, Chief of the Imperial General Staff and General Officer Commanding in Chief, Egyptian Expeditionary Force, 1915-1916; the Rt Hon David Lloyd George, Secretary of State for War, 1916, and Prime Minister, 1916-1918; FM Sir Douglas Haig, Commander in Chief, British Armies in France, 1915-1918; Maj Gen Frederick (Barton) Maurice, Director of Military Operations at the War Office, 1917-1918; and the Rt Hon Winston (Leonard Spencer) Churchill, Secretary of State for War, 1919-1920. Also including correspondence, memoranda and notes concerning the events leading up to the resignation of Robertson as Chief of the Imperial General Staff in Feb 1918, dated Jan-Feb 1918. Semi-official papers and private correspondence, 1915-1918, collected by Brig Gen Cecil Courtenay Lucas, Robertson's Aide de Camp, mainly comprising correspondence between Robertson and Gen Sir Archibald (James) Murray, Gen Sir Beauchamp Duff, Gen Sir Charles Carmichael Monro, and Gen Sir Edward Henry Hynman Allenby, relating to military operations in India, Mesopotamia, Egypt and Palestine, 1916-1918; Lt Col Sir Maurice Pascal Alers Hankey, Secretary to the War Cabinet and the Committee of Imperial Defence, 1916-1917; Lt Gen the Rt Hon Jan Christian Smuts, South African Representative on the British War Cabinet, 1917; Gen Sir (Francis) Reginald Wingate, Governor General of the Sudan, 1916, and High Commissioner of Egypt, 1917; and Lt Col Charles A'Court Repington, Military Correspondent of The Times, 1916-1917. General correspondence with various on military matters, 1916-1918, including Reginald Baliol Brett, 2nd Viscount Esher, Lt Gen George Francis Milne, French Gen Robert Georges Nivelle, Italian Gen Luigi Cadorna, Lt Gen Sir Frederick Stanley Maude, and Gen Sir Herbert Charles Onslow Plumer.

Papers and photographs, 1888-1924, 1972, mostly manuscript letters by Simpson-Baikie to his wife, Marion Evelyn Simpson-Baikie, Lady Simpson-Baikie, 1906-1919, including letters whilst on active service on the Western Front, Gallipoli, Salonika and Palestine, 1914-1918; four manuscript letters from Simpson-Baikie to his mother-in-law, Emilita Miller, 1904-1918, and three manuscript letters from Simpson-Baikie to his daughter, Jean Simpson-Baikie, 1917-1918. Also, manuscript letter from Gen Sir Ian Standish Monteith Hamilton to Jean Miller Hamilton, Lady Hamilton, asking her to inform Marion Evelyn Simpson-Baikie that Simpson-Baikie has been chosen to serve at Gallipoli, 1915; manuscript letter to Simpson-Baikie from Gen Sir Horace Lockwood Smith-Dorrien, Governor of Gibraltar, on adverse comments about Smith-Dorrien in 1914 (Spiers, London, 1919) by FM John Denton Pinkstone French, 1st Viscount of Ypres, 1920. Eleven photographs and two negatives relating to Simpson-Baikie's career, 1888-1920, including three photographs of Simpson-Baikie, 1888, [1904]; Lt Gen Horatio Herbert Kitchener, 1st Baron Kitchener of Khartoum, General Officer Commanding in Chief, South Africa, with his Aide de Camp, Lt Francis Aylmer Maxwell [1901]; Maj Gen Hubert Ion Wetherall Hamilton, Maj Gen General Staff, Mediterranean Command, 1911; Gen Sir Ian Standish Monteith Hamilton at Charing Cross station, London, on his departure for Gallipoli, 13 Mar 1915; aerial photograph of the French camp at Sedd el Bahr, Gallipoli, Turkey, 1915. Typescript letter to Jean Morley Kennerley (née Simpson-Baikie) from Professor Robert Clifford Walton concerning Smith-Dorrien, 1972.