Papers relating to his life and career, 1896-1902, 1908-1918, principally comprising letters to his family, 1896-1902, notably describing his service in operations in Orange Free State and Transvaal, South Africa, 1899-1900; notebook relating to his service in South Africa, 1899-1902, containing copies of brigade and divisional orders, notes on horses health, lists of men killed and financial accounts; 'Notes from beleaguered Kimberley', an account of the siege and relief of Kimberley, Feb 1900, by one of his colleagues, [1900]; letters to his wife, 1913-1917, notably describing his service in the UK, 1914-1917, and on the Western Front, 1917; letters to Poore's wife from Lt Col William Brooksbank Garnett, Commanding Officer, 2nd Bn, Royal Welch Fusiliers, 1917-1918, chiefly concerning the circumstances of Poore's death; army message book containing notes on explosives, 1917; photographs of Poore, 1882-1917. Family papers, 1869-1879, 1893, 1899-1979, notably including papers relating to Poore's wife, Mrs Lorne Margery Poore (née Dennistoun), 1869-1879, 1899-1979; correspondence with his sister, Nina Hamilton, wife of Duke of Hamilton, concerning Poore's management of a suspense account established to provide for the Hamilton's children, 1904-1916.

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.

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].

Copies of papers, 1909-1974, comprising typescript copy of the 'Interim Report of the Advisory Committee for Aeronautics', 1909; night order book, HMS THESEUS, Korea, 1950-1951; newspaper cuttings on HMS THESEUS' departure from UK to Korea and subsequent return, 1950-1951; typescript transcript of Royal United Services Institute for Defence Studies lecture by Bolt, Oct 1951, entitled 'HMS THESEUS in the Korean War and some special problems of naval aviation in that theatre' (subsequently published in the Journal of the Royal United Services Institute for Defence Studies; standard circular letters to all retired admirals, containing Royal Navy news and information, from Chief of Naval Staff and First Sea Lord Adm Sir Varyl (Cargill) Begg, 1966-1968, Adm Sir Peter (John) Hill-Norton, 1971, and Adm Sir Michael (Patrick) Pollock, 1972-1974; article by Bolt on minesweeping in 1940-1941 by Vickers DWI (Directional Wireless Installation) Wellington aircraft entitled 'Minesweeping Wellingtons: Part 1: equipment and technique: early operations in the Thames Estuary', published in Air Pictorial (Apr-May 1979), with nine uncaptioned photographs of Wellington aircraft and a captured German magnetic mine.

Papers, 1910, 1935-1986, of Lt Gen Sir John (Fullerton) Evetts, including report on Evetts by Col William Baume Capper, Commandant, Royal Military College, Sandhurst, Jul 1910; 136 photographic negatives relating to Palestine and the North West Frontier, India, 1935-1941; letters of congratulation for service and for decorations, 1936-1940, including letters from AVM Richard Edmund Charles Peirse, Air Officer Commanding British Forces, Palestine and Transjordan, and Lt Gen Sir George Alexander Weir, General Officer Commanding British Troops in Egypt, 1936, Gen Sir Arthur Grenfell Wauchope, High Commissioner and Commander-in-Chief, Palestine and Transjordan, 1937, Lt Gen Archibald Percival Wavell, Jan 1939, Sir Harold Alfred MacMichael, High Commissioner and Commander-in-Chief, Palestine and Transjordan, Mar 1939, and Lt Gen Alan Fleming Hartley, General Officer Commanding-in-Chief, Northern Command, India, 1940; three copy typescript reports on operations carried out by British forces in Palestine and Transjordan, 20 May-31 Jul 1938, 1 Nov 1938-31 Mar 1939 and 1 Apr-30 Jul 1939, by Lt Gen Robert Hadden Haining, General Officer Commanding British Forces in Palestine and Transjordan; group photograph of Evetts and the staff of the 'Evetts Mission', Melbourne, Australia, 1946; papers relating to the Joint Anglo-Australian atomic test Project, Woomera, South Australia, including lectures, correspondence, eight volumes of manuscript diaries by Evetts, Jan 1947-Aug 1951, and printed map of missile and rocket ranges, Long Range Weapons Establishment, Woomera, South Australia [1950]; typescript text of lecture by Evetts, 'Woomera, yesterday and today', in English, French and Spanish [1957]; edition of Spanish magazine Ingenieria Aeronautica with illustrated article in Spanish by Evetts, 'Woomera ayer y hoy', Jul-Aug 1957; printed illustrated article by Chris Wren entitled 'The Commonwealth's Cape Canaveral', from The Aeroplane and Astronautics , Mar 1960; booklet entitled '14 May 1689 to 14 May 1968. 1st Battalion, The Cameronians (Scottish Rifles)' commemorating the Regiment on its disbandment, 1968, with manuscript note, returning the booklet to Evetts, from Most Reverend and Rt Hon Arthur Michael Ramsey, Archbishop of Canterbury, 14 Jun 1968; correspondence relating to legal action taken against Anthony Mockler over statements concerning Evetts' actions in Syria, 1941, in his book Our enemies the French: being an account of the war fought between the French and the British, Syria 1941 (Cooper, London, 1976); five letters to Evetts from Col George Alan Dawson Young, Middle East Commandos Historical Research Group and former Commanding Officer 50 and 52 Middle East Commandos, Jul-Aug 1983, relating to allegations made against 50 Middle East Commando by Martin John Gilbert in Finest hour, Winston S Churchill, 1939-1941 (Heinemann, London, 1983); papers, 1979-1986, on the Anglo-Australian Joint Project, including typescript draft chapters of Fire across the desert: Woomera and the Anglo-Australian Joint Project, 1946-1980 by Dr Peter Ralph Morton (published by Australian Government Publishing Service, Canberra, 1989); Bristol Civil Defence Sub-Section, report by Evetts as retiring sub-regional controller, 1959.

Papers relating to bombardment of Hartlepool by three German battle cruisers, 16 Dec 1914, dated 1914, 1920, 1922, [1930-1940], 1934, 1938, notably including Trechmann's official report to Lt Col L Robson, Officer Commanding, Durham Royal Garrison Artillery, dated 16 Dec 1914; Robson's official report to the Fortress Commander, West Hartlepool, dated 16 Dec 1914; 'The bombardment of the Hartlepools' by Capt W A Murley, an offprint from the [Royal Regiment of Artillery] journal, [1930-1940]; The Great War: I was there! part 7 (1938), including an anonymous article on 'British pluck and luck at the Hartlepools'. Typescript text on his military service, 1914-1917, notably his experiences with the Heugh Battery, Hartlepool, 1914-1915, and with 41 Siege Battery at the Battle of the Somme, 1916, and Battle of Vimy Ridge, 1917.

Microfilmed copies of the manuscript diaries of FM Douglas Haig, 1st Earl Haig, 1914-1919, and letters to his wife Dorothy Vivian Haig, Aug 1914-Mar 1919. Included in the papers are passages relating to the formation and composition of the British Expeditionary Force (BEF), under the command of FM Sir John Denton Pinkstone French, July 1914; Haig's reaction, as General Officer Commanding 1 Army, British Expeditionary Forces in France and Flanders (BEF), to the British retreat following the First Battle of Ypres, Dec 1914; plans for the British offensive at Loos, Jul-Sep 1915; correspondence with FM Horatio Herbert Kitchener, 1st Earl Kitchener of Khartoum and Broome, relating to the French's command of the Artois-Loos Offensive, Sep 1915; correspondence with Gen Sir William (Robert) Robertson, Chief of General Staff, relating to the proposed increase of British fighting forces in France, Oct 1915; the dismissal of French and the succession of Haig as Commander-in-Chief, British Armies in France, Dec 1915; Haig's recommendations for Lt Gen Sir Henry Seymour Rawlinson as his successor as General Officer Commanding 1 Army, Dec 1915; correspondence with Rt Hon Richard Burdon Haldane, 1st Viscount Haldane of Cloan, relating to Haig's appointment to Commander-in-Chief, British Armies in France, Dec 1915; orders from Kitchener to Haig concerning proposed Allied offensives in France and liaison with French Gen Joseph Jacques Cesaire Joffre, Jan 1916; letter from Robertson, Chief of the Imperial General Staff, to Haig relating to possible British offensives in the Balkans, Iraq and Germany, Jan 1916; discussions with Gen Sir Herbert Charles Onslow Plumer, General Officer Commanding 2 Army, British Armies in France, relating to possible British offensives at Ypres, Jan 1916; the German offensive at Verdun and the resultant requests by the French General Staff for a British relief offensive from Ypres to Armentières, Feb 1916; alleged incompetence within 2 Canadian Div command, Apr 1916; discussions with Robertson, Maj Gen Sir Launcelot Edward Kiggell, Chief of General Staff to British Armies in France, and Brig Gen Richard Harte Keatinge Butler, Deputy Chief of General Staff to the British Armies in France, relating to the proposed offensive at the Somme (Jul-Nov 1916), May 1916; Haig's instructions to Rawlinson, General Officer Commanding 4 Army, British Armies in France, regarding the proposed limited infantry attack on the Somme, Jun 1916; Haig's reaction to British Cabinet criticism of British casualty figures during the Somme offensive, Jul 1916; analysis of German casualty figures during the Somme offensive, Nov 1916; Haig's reaction to replacement of Rt Hon Herbert Henry Asquith, Prime Minister of Great Britain and First Lord of the Treasury, with Rt Hon David Lloyd George, 1916; Haig's reaction to replacement of Joffre as Commander-in-Chief of the French Armies with French Gen Robert Georges Nivelle, 1916; Haig's promotion to FM, 1917; supplies and manpower required for proposed British and French combined Nivelle offensive, 1917; Haig's reaction to German withdrawal to defensive positions along the Hindenburg Line, 1917; Haig's reaction to Calais Conference proceedings, in which combined British and French command council is proposed, 1917; Haig and Robertson' s veto of Gen Sir Henry Hughes Wilson as proposed British Chief of Staff liaison to Nivelle's Headquarters; the re-organisation of the Allied command structure as a result of the Calais Agreement, 1917; the failed French offensive at Aisne, Apr 1917; plans for the Passchendaele Campaign (Jul-Nov 1917) and the choice of General Hubert (de la Poer) Gough's 5 Army as the main British assaulting force, 1917; Haig's fears of a French civil and military collapse, 1917; conference with Gen John Joseph Pershing, Commander-in-Chief American Expeditionary Forces in Europe, Jul 1917; severe criticism levelled at Haig concerning his command of the Passchendaele Campaign, Jul-Nov 1917; Haig's reaction to the establishment of the Inter-Allied War Supreme War Council at Versailles, France, and the posting of Wilson as its British representative, 1918; Robertson's replacement as Chief of the Imperial General Staff by Wilson, 1918; the shortage of British military reserves in France, 1918; the failure of the German 'spring offensives' at Arras, France, Lys, Belgium, and Aisne, France, Mar-May 1918; straining relations between Haig and FM Ferdinand Foch, Marshal of France and Generalissimo of the Allied Forces, France, 1918; the Battle of Amiens, Aug 1918; the terms of the armistice, Nov 1918; perceptions of the Paris Peace Conference and the resultant Treaty of Versailles, 1919.

Mainly official publications and printed reports, memoranda on rearmament and supply before and during World War Two, with some photographs and personal papers, 1938-1953; notably including typescript copy of reminiscences by Brown with press cuttings and notes relating to the Ministry of Supply and other correspondence, 1938-1960; detailed diary by Turner, 1940; private papers by Turner on his domestic life, accounts, diary summaries, some correspondence and photographs, 1914-[1946]; files containing mainly typescript memoranda, correspondence and statistics relating to the Committee of Imperial Defence, War Office and Ministry of Supply, predominantly concerning rearmament and Second World War production, including progress reports on production and preparations for war, with printed reports on tanks and anti-tank guns, 1936-1943; minutes of a Committee of Imperial Defence sub-committee meeting on the supply of war material to Portugal, 1938; typescript review of air defence, including statistics of anti-aircraft guns, factory planning, civil defence, 1939-1940; file on munitions supply preparations incorporating some minutes of the Informal Army Council on munitions, 1937-1939; papers of the Industrial Capacity Committee including on US supplies to the UK in time of war, 1941; typescript briefing papers prepared for ministers for Commons' speeches, 1942; file of typescript retrospective analyses of war production contracts, 1948; printed reports and official publications on armed forces structure and expenditure, production and ordnance factories, national expenditure, post-World War One reconstruction, Ministry of Supply on inspection regimes, Whitley Councils 1917-1955, notably including 'Investigation of the Heavy Crossbow installations in Northern France', 2 vols, (1945), Ministry of Supply booklet entitled 'Progress in scientific research' (1947),'Statistics relating to the war effort of the United Kingdom' (HMSO, 1944), 'War-time tank production' (London, 1946), 'Review of Defects Disclosed by the Czechosolvak Crisis', 1938, report of a committee chaired by Sir Percy Mills on the organisation of the Royal Ordnance Factories, Apr 1951; 'Central planning and control in war and peace' by Sir Oliver Franks (1947), 'Interdenominational Advisory Committee on Army Chaplains Services', 1953,'Contracts and Finance Copy No. 2', Jun 1948; additional papers on a Royal Institute of Public Affairs Group Research Project on Changes in the Structure of Executive Government, 1956, and Report by Sir Keith Hancock on the Official History of the War: Civil Series, 1957.

Copies of papers relating to his service in France, 1917, principally comprising orders and summaries of operations for Royal Field Artillery, 12 Div, 1917, orders, maps and timetables relating to trench mortar batteries on the Somme front, Jul-Sep 1917, and General Staff publications on wiring, signalling, the employment of guns and trench mortars captured from the enemy, and 2 Army operations, 1917; copies of correspondence, 1915-1917, 1969-1970, mainly letters written by Blagrove from the Somme front to his father, Col Henry John Blagrove, 1916-1917.

Papers relating to his service in the Fleet Air Arm, 1939-1945 and 1974, principally comprising aerial propaganda leaflets collected by Freedman. 'Annals of minds at war', an article on aerial propaganda by John Moorehead, from The Daily Telegraph, 8 Mar 1974. Three scripture pamphlets issued by the United States Army, namely Roman Catholic and Protestant editions of 'The Gospel according to St Matthew' and 'Psalms from the Jewish Holy Scriptures', 1943-1944. Notebook of Trooper T W Thorn, Surrey Yeomanry, containing a diary covering his service in Salonika, Jun 1917-Jan 1919. Notes on the history and use of grenades, and descriptions and drawings of different types of grenades, [1917-1919].

Papers, diaries, maps and publications relating to Col Ronald Duncan Cribb's life and military service, 1918-1957, including one hundred and sixty five military handbooks, training manuals and regulations, mostly relating to artillery, small arms, signals and the duties of commissioned officers, [1918]-1945; typescript and manuscript orders, notes and memoranda relating to 342 (Hertford) Battery, 86 (East Anglian), Hertfordshire Yeomanry Field Regt, Royal Artillery, Territorial Army, 1938-1939; manuscript narrative diaries relating to service in the Western Desert, Tunisia and Italy, 1941 and 1943; typescript unit diary, 121 Medium Regt, Royal Artillery, with lists of personnel, vehicles and weapons and equipment, 1944; typescript instructions for 5 Army Group, Operation OVERLORD, the Allied invasion of German occupied France, with typescript orders of battle and lists of stores, 1944; two manuscript notebooks [1944]; printed training pamphlets for service in Italy and Normandy, France, with notes on calibration, waterproofing and routes through Germany, 1944-1945; typescript orders, memoranda, printed news-sheets and press cuttings relating to 121 Medium Regt, Royal Artillery, North West Europe, 1944-1945; typescript history, written in [1947] of 121 Field/Medium Regt, Royal Artillery, 1939-1946; edition of the 'History of the 43rd Wessex Div, 24 June 1944-8 May 1945' [1947]; edition of 'The campaign in North West Europe: 275 Battery RA' [1947]; printed menus and invitations, Hertfordshire Yeomanry and 121 Medium Regt, Royal Artillery, 1947-1957; edition of 'The story of the 5th Army Group RA' [1948]; typescript Civil Defence course notes, 1948; agendas of meetings, circulars and correspondence relating to Hertfordshire Territorial and Auxiliary Forces Association, 1948-1951; typescript course notes, Field Officers, Tactical Wing, School of Artillery, Territorial Army, 1950.

Manuscript copy of German Machine Gun Order, 1918, which instructed Germany Army personnel in how and when to use machine gun fire against enemy infantry, tanks, and aircraft