The collection consists of pamphlets written by Davidson, papers relating to his part in the Allied Military Mission to Moscow, USSR, 1939 and papers relating to his career in World War Two as Commander in the Royal Artillery and as Director of Military Intelligence. The World War Two material includes maps used in the retreat of the BEF (British Expeditionary Force) to Dunkirk, France, maps used as Director of Military Intelligence to illustrate the progress of the war to Queen Mary, mother of George VI and a personal diary kept while Director of Military Intelligence. There is also a file containing correspondence with E E Thomas of the Cabinet Office Historical Section relating to aspects of Military Intelligence during World War Two.

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.

Typescript copy of account of Crawfurd's service with 29 Battery, 19 Field Regt Royal Artillery, 3 Infantry Bde, 1 Div during Operation DYNAMO, the evacuation of the BEF (British Expeditionary Force) from Dunkirk, France, 1-3 Jun 1940. Also, copy of Crawfurd's obituary from The Times, Aug 1943, and a printed obituary by Col Robert Townsend Hammick, dated 19 Aug 1943, Crawfurd's Commanding Officer, 19 Field Bde, Royal Artillery, 1930-1934.

Photocopy of privately published memoir, 'The Great War, 1914-1818: a former 'Gunner' of the First World War looks back', a detailed account of his military career, 1913-1919, covering mobilisation in Edinburgh, artillery, gas warfare and veterinary training, service with the Royal Field Artillery on the Western Front, 1915-1918, notably action around Vimy, May-Jun 1917, Lens, June-Oct 1917, and the Somme front, Feb-Oct 1918, and entry into Lille, Oct 1918, and demobilisation in Brussels, Feb 1919, written in [1974]. Includes reproductions of photographs and extracts from his letters home and his diary.

Various photographs, [1924-1955], principally of army personnel, including Royal Review, Aldershot, 1924, Canadian soldiers and troop carrier, 1944, staff of Movement Control, Dover, 1945, Old Sarum, 1955 and photographs relating to Malaya, [1949], and the Ross Battery, ND. Identity card, 1946. Royal Regiment of Artillery Magazine, 1992.

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.

Edition of 14 Heavy Battery RGA War Diary (Robert Scott, London, 1919), including the war diary, 1914-1919; list of honours and awards to officers, non- commissioned officers, and soldiers who served with the battery; list of officers who served with the battery; and the battery roll of honour, 1914-1919