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.

Manuscript diaries, detailing his SOE training in Haifa, Palestine, Cairo, Egypt, his service as an instructor at the Allied Military Mission Commando School at Pendalophos, British relations with allied Greek partisan units, and SOE harassment and demolition activity prior to and during the German withdrawal from the Greek peninsula, 1943-1944; reports, mainly compiled byEvans as commander of the Vitsi sub-area, relating to intelligence, reconnaissance and demolition missions alongside Greek Ethnikos Laikos Apeleftherotikos Stratos (ELAS) units, the pro-German infiltration of West Macedonia, and the conduct of Operation NOAH'S ARK; papers relating to SOE commando missions, including notes detailing weapons, ammunition and supplies used; lists of alliedPolish, Czech and French participants in the Allied Military Mission, autumn 1943; papers relating to the construction of the SOE airfield at Grevena, 1944; list compiled by Evans concerning hostile Armenian, Italian, German and Greek forces, 1944; notes detailing the nominal roll of partisan forces in the Vitsi sub-area, 1944; papers relating to SOE and ELAS border assaults into Yugoslavia and Albania, 1944; papers detailing the splintering of relations between British and Greek forces in Greece, 1944; booklets of deciphered signals messages received and issued by the Vitsi sub-area station, relating to the movement of German forces and Yugoslavian partisans, under the command of Marshal Josip Broz (Tito), and the execution of Operation NOAH'S ARK, 1944; correspondence with Lt ColArthur Edmonds, Officer Commanding Area 1, West Macedonia, Lt Col Nicholas Geoffrey Lemprière Hammond, Officer Commanding Allied Military Mission, West Macedonia, and allied British, American and Greek soldiers, 1944; policy and procedure papers, including his official secrecy declaration, 1944; papers relating to SOE technical training, finances and supplies; papers, in Greek, relating to combined operations between the Allied Military Mission and ELAS 9 Div, including command and control agreements and messages from Gen Karayannis, commander ELAS 9 Div, relating to German movements in the Vitsi sub-area; official report, in Greek, from theGreek government, detailing the history of Greek partisan forces in Greece, 1940-1944; Greek propaganda leaflets and newspapers relating to Greek partisan activity in West Macedonia, and Ellinikos Dimokratikos Ethnikos Stratos (EDES) and ELAS power struggles, 1944; German divisional daily order concerning the psychological state of German occupation troops; personal correspondence from German 1 Mountain Div soldiers; papers relating to the proposed publication of an account of Evans's career in the SOE; papers relating to the publication of Hammond's article, 'The Allied Military Mission in Northwest Macedonia', Balkan Studies (Volume 32), 1993.

Papers, 1953-1977, including draft of article relating to the role of air transport in army supply, published in the Army Journal; Imperial Defence College background study notes, 1966, on international relations, the UK economy, research and development; papers relating to Aden, 1967, including extracts of regimental journals relating to operations of British units in Aden, situation reports of 1 Bn the Lancashire Regt (Prince of Wales's Volunteers), translations of daily communiqués of FLOSY (Front for the Liberation of Occupied South Yemen) and NLF (National Liberation Front), texts of speeches and official briefing papers of Headquarters MELF, notes and drafts for a book by Dunbar on Aden; articles by Dunbar, 1971-1973, relating to operations of 8 Bn (Midland Counties) the Parachute Regt in France, Belgium and Palestine, 1944-1948, and 16 Independent Parachute Bde Group in Cyprus and Suez, 1956.

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.