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.

Royal Naval Air Service/RAF pilot's flying log book, 1918-1924; three RAF pilot's flying log books, 1924-1926, 1934-1936 and 1937-1946. Four photograph albums, with many captioned photographs of Lynch's service in Turkey and southern Russia, 1919, and Iraq, 1931-1934, also 51 photographic negatives, mostly of southern Russia, 1919. Personal papers and photographs,1917-1946, including printed RAF certificate for the completion of a course in 'Aerial gunnery and bombing, Eastchurch, Kent, 1924, congratulatory letter to Lynch, concerning a successful air display, from AVM Cyril Louis Norton Newall, Air Officer Commanding Wessex Bombing Area, 1931, and printed service history, compiled by Lynch's son, 1994.

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.

Copy of detailed memoir, 'From air to chair', covering his RAF career, 1929-1961, including sections on his RAF training, bomber squadron service, 1930-1933, armament training and duties, 1933-1944 and service in Iraq, 1937-1939, Bomber Command, 1939-1940, the Air Ministry, 1940, 1947-1949 and 1954-1956, Malaya, 1946, Joint Services Staff College, 1947, Central Gunnery School, 1949-1951, Rhodesian Air Training Group, 1951-1953 and Technical Training Command, 1956-1961, written in 1985. Copy of chapter of personal family history giving an account of his father, Lt Col Lewis Collinwood Bearne, during the period 1878-1918, including his service in the Boer War and World War One, [1980-1985].