Photocopies of memoir covering military service, 1860-1918; published account of Tochi Valley expedition, Afghanistan, 1897-1898; complaint relating to conditions in trenches, Western Front, World War One, 1915.

Photocopies of correspondence and photographs, taken from five albums, relating to Sclater's career, 1898-1927, including letter from FM Sir (Henry) Evelyn Wood, Adjutant General to the Forces, confirming Sclater's appointment as Bde Maj, Aldershot, 1898; seventeen copies of photographs and nine sketch maps relating to the Second Boer War, South Africa, 1899-1902, including photographs of Bloemfontein and Brandfort, Orange Free State, and sketch maps of the Battles of Modder River, Nov 1899 and Paardeberg Drift, Feb 1900; two photographs of the 13 pounder Quick Fire gun, newly issued to the Royal Horse Artillery, 1904; letter from Lt Col Rt Hon Arthur John Bigge, 1st Baron Stamfordham, thanking Sclater for congratulatory letter on the award of a peerage to Stamfordham, 1911; three photographs of Indian Army sepoys, 1912; correspondence, 1912- 1917, including letters relating to recruitment, military inspections and the availability of manpower from FM Sir John Denton Pinkstone French, Commander-in-Chief, Home Forces, Feb 1917, Gen Sir (Henry Macleod) Leslie Rundle, General Officer Commanding-in-Chief, Eastern Command, Feb-May 1916, and Lt Gen Sir (Cecil Frederick) Nevil Macready, Adjutant General to the Forces, Jul 1917; letter to Slater from Gen Sir (Francis) Reginald Wingate, relating to riots in Egypt, Jun 1920; letter to Sclater from Lt Gen Sir George Fletcher MacMunn, Quartermaster General, India, dated Jun 1921, relating to the political and military situation in India, particularly in the aftermath of the massacre of 479 Indian civilians by troops of the Indian Army, commanded by Brig Gen Reginald Edward Harry Dyer, Amritsar, Punjab, Apr 1919; printed obituary of Sclater [1927].

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 relating to aviation and transport, dated 1910-1928, principally comprising papers relating to Joint War Air Committee (Inter-Departmental Committee on the Air Service) chaired by Edward George Villiers Stanley, 17th Earl of Derby, 1916, Committee on the Administration and Command of the Royal Flying Corps, 1916, and Air Boards chaired by Weetman Dickinson Pearson, 1st Viscount Cowdray, 1917, and George Nathaniel Curzon, 1st Earl Curzon of Kedleston, [1916]; correspondence, 1915-1916, 1920, notably including correspondence with Herbert Henry Asquith, 1916, Curzon, 1916, Derby, 1916, the Imperial Defence Committee, 1916, the Parliamentary Aviation Committee, and George Sydenham Clarke, 1st Baron Sydenham of Combe, 1916; printed books, pamphlets, memoranda, notes and texts by Douglas-Scott-Montagu and others, 1910-1920, mainly relating to aviation technology, anti-aircraft defence and the organisation of the air services; memoranda, official reports, notes and texts relating to his work as Adviser on Mechanical Transport Services to the Government of India, 1915-1919; manuscript account of service of No 1 Armoured Motor Unit, North West Frontier, India, 1915-1916, by Capt A J Clifton, 68 Durham Light Infantry, 1915-1916, dated 1917, including photographs and preface by Montagu. Other papers relating to his life and career, 1914-1926, dated 1914-[1926], 1948, principally comprising letters relating to his service with 7 Hampshire Regt in Egypt, 1914, and India, 1915; photographs and photographic negatives, 1915-1922, mainly relating to his service in India, 1915-1919. Typescript draft of A strange war. Burma, India and Afghanistan, 1914-1919 (Sutton, Gloucester, 1988), an account of 2/5 Bn, Somerset Light Infantry and 2 Mechanical Transport Company by Chris P Mills, based on the recollections of Col B G L Rendall, the diary of Edward William Ewens and research into the Montagu papers, dated 1987.

Papers relating to his life and career, 1885-1941, including typescript volume entitled 'The story of the Egyptian campaign, 1885-1886', written in [1914]; two typescript volumes entitled 'My narrative of the South African War 1899-1902' and 'Second phase of the South African War' with sketch maps, notes and recommendations of awards for officers and men of 2 Mounted Infantry Corps, 1899-1900; reports, notes and correspondence, 1900-1912, relating to the future development of cavalry in the British Army, including typescript extracts from article by Maj Gen Sir Ian Monteith Hamilton on operations at Diamond Hill, Second Boer War, South Africa, Jun 1900, and correspondence with FM Rt Hon Frederick Sleigh Roberts, 1st Earl Roberts of Kandahar, Pretoria and Waterford, Lt Gen Sir Horace Lockwood Smith-Dorrien, Maj Gen Edmund Henry Hyman Allenby, Maj Gen Sir Edward Thomas Henry Hutton, and Lt Col Hubert De la Poer Gough, 1903-1910; typescript notes on cavalry tactics, equipment and history, entitled 'Letters from an old cavalry officer to his son', 1909; two typescript volumes entitled 'My narrative of the Great German War', an account of his service in World War One in Gallipoli and on the Western Front, 1914-1918, including 29 photographs and typescript table showing number of 29 Div casualties between 1915 and 1917; manuscript article by De Lisle entitled 'General Sir Archibald Wavell GCB: the unknown leader', 1941; typescript unpublished novel entitled 'The great recovery', 1941, based on De Lisle's experiences in World War One, 1914-1918.

Copies of diaries, 1911-1916, covering his flying training, 1911-1914, his service with the Royal Naval Air Service in the UK, [1914]-1915, Gallipoli, 1915, Bulgaria, 1915, and Egypt, 1916. Copy of account of his imprisonment in Turkey, Mar-Jul 1917, written in [1917], with newspaper cutting describing conditions in prisons in Constantinople, [1917]. 'The story of the men and aircraft of the Fleet Air Arm', illustrated pamphlet prepared for the Directorate of Navy Recruiting by the Central Office of Information, dated 1985.

Papers of Colonel Stevenson Lyle Cummins comprising memoirs of service in Africa and France, 1898-1918, and war diaries and other papers, 1914-1916. Copy memoir, 1873-1904, detailing service with Medical Service Corps in Egypt and the Sudan, including accounts of medical work handling wounds and cases of typhoid, diarrhoea, malaria, fevers, dehydration and scorpion stings at locations including: Genetti Fort, Sudan, Darmali Camp, Sudan; Omdurman Camp, Sudan; Waw Garrison, Sudan and the Kassala District, Sudan; also accounts of Battle of Omdurman, 1898; an expedition to recapture the town of Gallabat, Sudan, from Abyssinian forces; expeditions in the Bar el Ghazal region, Sudan, to capture cattle and burn huts in Dinka villages and visit friendly Dinka chieftains; and an attack on Ibrahim Wad Mahmud, slaver, at Jerok, Sudan. Includes detail of hunting expeditions and daily life for troops. Copy memoir of World War One service, 1914-1918. War diary kept by Cummins as Deputy Assistant Director General, Medical Services, British Expeditionary Force, France, 1 Jan - 31 Dec 1915, with appendiced reports, memoranda and correspondence on: treatment of cerebro-spinal meningitis, trench foot (described as 'chilled feet' or frost-bite) and the supply of waterproof paper stockings, gum boots and whale oil as preventatives, anti gas precautions; logistical reports concerning personnel, evacuations, ambulance trains and barges; reports of an enquiry into an enemy chlorine and bromine gas attack to the south of "Shell Trap Farm" (village of St Julien, near Ypres), 24 May, 1915; report on captured German trenches, 16 June 1915; copy letter from General Sir Cecil Frederick Nevil Macready to the War Office regarding the establishment of a Central Laboratory for experimental work on prevention of gas asphyxiation; copy letter from Sir Arthur Sloggett to Sir Alfred Keogh, 9 Dec 1915, on the possibility of researching improved personal armour at Imperial College London. War diary for Report Centre GHQ, Hazebrouck, 10-17 March 1915, detailing logistics of transportation of wounded from Clearing Stations. War diary for Advanced GHQ, 8-23 May 1915, including casualty figures at Gas Clearing Stations; routine orders issued by General Sir Cecil Frederick Nevil Macready, Adjutant General, British Expeditionary Force, 18 Aug 1914, concerning procedures if taken prisoner, if a white flag should be hoisted by the enemy, the speed at which to drive motor-cars, and the correct procedure for saluting; report on the provision and stocking of ambulance trains, 9 March 1916; report on provision of extra personnel for Casualty Clearing Stations during heavy fighting, 9 March 1916; undated casualty figures at Casualty Clearing Stations for the 1 Army, 2 Army and 3 Army.

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.

Detailed memoir, 'I'd live it again', covering his life and military career, 1898-1945, notably his service in France, 1918, Egypt, 1919-1921 and 1939-1941 and East Africa, 1941-1942, written in 1947 and privately published in pamphlet form.