Papers relating to his service in the RN, [1914-1920], [1939-1945], principally comprising carbon copies of letters to his family describing his service at Gallipoli, 1915-1916, and in Salonika, Greece, 1916-1918; typescript texts, written in [1918-1975], principally comprising descriptive sketches of life in Salonika, 1916-1918, in Belgrade after the retreat of German and Austrian forces, 1918-1919, and in Budapest following Communist uprising led by Bela Hung Kun, 1919, written in [1918-1975]; typescript text by Harry W Frantz on Troubridge's work in Serbia and Hungary, 1915-1918, and as President of the Interallied Commission of the Danube, 1919-1920, written in 1920. Photographs relating to his service in Gallipoli, 1915, Salonika, 1915-1918, Belgrade, 1918-1919, and press photographs of the Communist revolution in Budapest, 1919-1920. Glass slides relating to his service in Salonika, 1915-1918. Papers relating to Burrows' work in the Shipping Casualties Section, Trade Division, Admiralty, 1939-1945, principally comprising descriptions of the work of the section, official reports concerning sunk or damaged ships and texts of interview with survivors.

Copies of papers and photographs relating to Chamberlain's life and career, 1906-1970, including unpublished manuscript memoirs, 1906-1923; papers relating to pay and postings, 1915-1949; account of service with Royal Flying Corps, 1916-1917; typescript report on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.

Papers relating to his military service during World War Two, dated [1939-1945], 1948, 1965-1966, notably including account of the service of 1 Welch Regt in Crete, May 1941, written in 1966; silk map of North Africa and the southern Mediterranean, [1939-1945]; account of his imprisonment in Salonika in 1941 and his subsequent transportation to Germany, [1945]; typescript copy of 'Per anum ad astra', an account by Alexis Casdigli of the smuggling of maps from Oflag IX A-H to Oflag XII B in 1944 by a group of POWs, including Casdigli and Griffith, written in 1948, copied in 1965.

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.

Papers and photographs, 1913-1958, including fourteen panoramic photographs produced by Survey Company, Royal Engineers, Salonika Force, labelled to show topographical details, Feb 1917; 'Salonika fire', 18-19 Aug 1917, a series of 24 official photographs of the city, taken by Survey Company, Royal Engineers and Royal Flying Corps; two photographs, one of a uniformed group including Stevenson, [1946], and the other of an unidentified painting showing construction work on an airfield [1940]. Papers relating to the evacuation of Royal Engineers establishments in Beit-Nabala and Haifa, Palestine, 1948. Editions of Notes on building materials and their uses (School of Military Engineering, Chatham, 1913); 'RMA (Royal Military Academy) Magazine', Vol XV, No 58, Nov 1914.

Typescript lecture notes on the training of officers, School of Military Engineering, Chatham, Kent [1940]; typescript memorandum by Young entitled 'Notes on Engineer intelligence', 1943; typescript notes by Young on the effects of bombing on port facilities in North Africa, 1943; typescript article by Young entitled 'The development of land mine warfare', 1944; typescript notes by Young entitled 'In Macedonia, 1916-1917', written in 1946, with a manuscript letter from Lt Col Anthony Heritage Farrar-Hockley, Commanding Officer 3 Bn, The Parachute Regt, thanking Young for the use of the notes, 1962; typescript volume entitled 'The Brigade Headquarter's Story. The story of the 130th Brigade HQ (43rd Wessex Division) 1939-1946', edited by S G M Liddle, with four photographs and typescript list of former 130 Bde officers, 1951; correspondence relating to Young's appointment as Hon Col, 121 Army Engineer Regt, Royal Engineers, Territorial Army, 1952-1959; edition of Salonika memories 1915-1919 by G E Willis (Salonika Reunion Association, Newbury Weekly News, Newbury, 1969); edition of Ten Chapters 1942 to 1945 by FM Sir Bernard Law Montgomery (Hutchinson, London, 1946); articles from The Royal Engineers Journal, 1932-1934, including article by Young entitled 'The diary of an RE subaltern with the BEF in 1914'.