Papers of Lady Kathleen Liddell Hart chiefly relating to Capt Sir Basil Liddell Hart and Adrian Liddell Hart, [1929-1997].Papers relating to Basil Liddell Hart including typescript transcripts of his appointment diaries, 1940-1953; draft of History of the Second World War by Basil Liddell Hart and Kathleen Liddell Hart's related correspondence with the publisher Cassels; letters from Basil Liddell Hart to Jessie Liddell Hart; Basil Liddell Hart's wallet; drafts of letters, lectures and articles by Basil Liddell Hart, 1929-1969; papers of Basil Liddell Hart on the history of fashion and manners; press cuttings including with quotations from Basil Liddell Hart's writings and book reviews of his work; letters relating to Basil Liddell Hart's death; papers relating an exhibition on the life of Basil Liddell Hart, 1977; papers relating to the centenary of Basil Liddell Hart's birth, 1995; Kathleen Liddell Hart's correspondence with researchers on Basil Liddell Hart, 1971-1980s; correspondence with solicitors about Basil Liddell Hart's estate and papers relating to royalties, 1981-1990.Papers relating to Adrian Liddell Hart including Basil Liddell Hart's correspondence on Adrian Liddell Hart, 1939-1952; letters from Basil Liddell Hart to Adrian Liddell Hart, 1939-1965; letters from Adrian Liddell Hart to Basil Liddell Hart, 1935-1948; letters from Kathleen Liddell Hart to Adrian Liddell Hart; letters to Adrian Liddell Hart, 1952-1991; typescript drafts of Adrian Liddell Hart's [unpublished] books 'Unconditional Surrender' a novel based on his time serving on control commission, Berlin. (London, Nov 1950) and 'The State of Canada'; sympathy letters on the death of Adrian Liddell Hart; papers relating to winding up the estate of Adrian Liddell Hart and obituaries.Personal photos of Basil Liddell Hart and Kathleen Liddell Hart; Kathleen Liddell Hart's correspondence, chiefly 1970s-1990s but also including early letters from Basil Liddell Hart and letters to her family, 1940-1946; Kathleen Liddell Hart's appointment diaries; guest books; draft of Kathleen Liddell Hart's memoirs, and correspondence with the editor, Jennifer Schofield; tributes to Kathleen Liddell Hart and drafts of a book on Richard Aldington by Frank Crawford and related correspondence.

Papers of Maj Gen Ian Helstrip Baker, notably concerning armoured warfare, 1955-2003, including instructions, memoranda, reports and notes on training exercises including Exercise GAMEBIRD, Cyclops Sqn, 2 Royal Tank Regt, Libya, Jul 1964; Exercises OPEN GLOVE and TREBLE CHANCE, Cyclops Sqn, 2 Royal Tank Regt and 16 Parachute Bde Group, Sep 1964; Exercise DOUBLE STRETCH 72, 7 Armoured Bde, Germany, Feb-Mar 1972; Exercise RED RAT, 7 Armoured Bde, Germany, Sep-Oct 1972; MACLEOD, 7 Armoured Bde, Germany, Aug-Sep 1972; Exercise READY RAT, 7 Armoured Bde, Germany, 11 Sep 1972; Exercise LONG LOOK, for 7 Armoured Bde trials of ZB298 radar, Oct 1971-Apr 1972; organisational trial Exercise SQUARE RAT, Germany, 28 Dec 1972; Exercise FIRST STRETCH 73, 7 Armoured Bde, Germany, Feb 1973; Exercise DOUBLE STRETCH 73, 1 Armoured Bde, Germany, Mar-Apr 1973; Exercise HURST PARK 73, 7 Armoured Bde, Germany, Apr 1973; Exercise QUEEN'S PATROL, 7 Armoured Bde, Germany (relating to operations in Northern Ireland), May 1973; Exercise RED RAT 73, 7 Armoured Bde, Germany, Aug 1973; Exercise FOUR SQUARE, 7 Armoured Bde, Germany, Sep-Nov, 1973; photographs of [FV214 Conqueror battle tanks], Royal Armoured Corps, Bovington, Dorset and photograph of an amphibious jeep, partially submerged, 1960; photograph of Crown Prince Birendra of Nepal and others watching a Hornet Launcher vehicle being loaded with Malkara missiles by personnel of Cyclops Sqn, 2 Royal Tank Regt, Candahar Barracks, Tidworth, 15 Apr 1964; captioned photographs relating to Baker's visit to [1 Bn, Royal Green Jackets], Belfast, Northern Ireland, including: battalion personnel on patrol; Falls Road and Hamilton Street, Belfast, showing the aftermath of explosions; IRA weapons discovered, including rifles, knives, an RPG7 rocket launcher and RPG7 rockets, a car bomb and smaller incendiary devices, Aug 1972; photographs of Baker, Nov 1979 and in Brigadier's uniform; handing over briefing notes by Baker as Deputy Assistant Adjutant General, 17 Gurkha Div, Overseas Commonwealth Land Forces, 25 Jun 1962; training instructions for Cyclops Sqn, 2 Royal Tank Regt, Tidworth, Mar 1963-May 1964; briefing notes on the Parachute Sqn, Royal Armoured Corps, by Baker, 1964; Royal Armoured Corps training pamphlet, 'The technique of shooting from AFVs. Part 4: the application of fire from Saladin armoured cars' (MoD, Feb 1967); 1 Royal Tank Regt standing operational procedures, Jun 1969; briefing notes for Baker as Commander, 7 Armoured Bde, by Administration and Quartering staff, 7 Armoured Bde, 18 Jan 1972 and by Brigade Majors, 7 Armoured Bde, 7 Feb 1972; 7 Armoured Bde standing operating procedures relating to headquarters and operations (vol. 1), and administration and logistics (vol. 2), Feb 1972; training directives by Baker as Brigadier Commanding 7 Armoured Bde, Mar-Sep 1972; notes on the creation and history of the Desert Rat badge of 7 Armoured Bde, 1940-1972; training directive by Baker as Brigadier Commanding 7 Armoured Bde, Mar 1973; correspondence and accounts by Lt Col R A Pascoe, 1 Bn Royal Green Jackets, of the battalion's service in Belfast, 8-14 Oct 1972.