Narrative of operations of 7 Division, 1918 by the Revd E C Crosse including reference to Clifford's service as Officer Commanding 95 Field Company, Royal Engineers; papers relating to Anglo-Italian Jubaland Boundary Commission, 1925-1928 including maps; British Somaliland-Ethiopia Boundary Commission, 1931-1936, including intelligence reports on French Somaliland, air survey operations, Walwal incident between Italian and Ethiopian troops, and printed reports on the work of the Commission; Chief Engineer, China Command, including report on Royal Engineers in Hong Kong, 1941-1942; Kenya-Ethiopia Boundary Commission, 1950-1957, including diaries, 1951-1955, printed reports, and maps of the boundary, 1946-1949; published articles by Clifford, 1928-1947, mainly on boundary commissions; technical manuals, 1924-1932, including surveying; publications and printed works, 1892-1952, including boundary commissions.

The papers cover the period 1914-1965 and include papers relating to service in England, France and with British Army of the Rhine, 1914-1919 in particular 35 Division Artillery Signals; Iraq, including diary, 1920-1921; Nigeria, including field message book, 1924; Quetta, India, including earthquake diary, 1935; newspapers covering death of King George V, 1936; command of Northern Rhodesia Regt, Lusaka, 1937-1940, including scrap albums; command of 26 (East African) Infantry Brigade, East Africa and Abyssinia, 1940- 1941, including operation reports; command of 22 (East African) Infantry Brigade, Madagascar, 1942, including operation reports; command of 28 (East African) Infantry Brigade and 11 (East African) division, Burma and India, 1944-1946 including accounts of operations; General Officer Commanding East Africa, 1946- 1948, including official circulars, speeches and addresses; General Officer Commanding Aldershot Command, 1948-1951, including speeches and lectures; Representative on Military Staff Committtee, United Nations, 1951-1953, including diary; Col Commandant of Northern Rhodesia Regiment, King's African Rifles and Kenya Regiment, including correspondence, 1952-1964, committee papers and publications; papers relating to Army Cadet Force Association including minutes of meetings, 1956-1959; Inter-Parliamentary Union, including account of journey to Warsaw, Poland, 1959; maps, 1914-1943, including Western Front, Iraq and India, Nigeria and Madagascar.