Photograph albums relating to his military career, [1914-1942], notably his service in Northern Ireland, 1920, Hong Kong and Shanghai, 1930, North Africa and India, [1930-1940], and Kenya, 1940-1942, with associated papers, [1914-1942], notably a diary of C and D Companies, 1 Bedfordshire and Hertfordshire Regt, Belfast, 28 Jul-30 Jul 1920.

Papers of Reginald Ruggles Gates, 1896-1969, including diaries and research notebooks, papers relating to Botanical Biology ; Gates' research files; photographs; appointment diaries; correspondence; papers relating to professional memberships and conference material; press cuttings and published articles on his research interests. Including diaries and research notebooks, 1906-1962. Papers relating to Botanical Biology , an unpublished work by Gates, including manuscript notes, statistics, photographs and plant seeds. Research files, including draft papers by Gates such as notes from publications, articles, lecture transcripts, lecture notes, chapters of books, book reviews and others. Also photographs, articles, tables of data on physical characteristics of various peoples, graphs and charts, press cuttings and correspondence, on a variety of subjects including botany, oenothera , ethnic groups, race, genetics, biology, anthropology and Gates' anthropological studies in Australia, Canada, Cuba, India, Japan, Mexico, New Guinea, Okinawa, South Africa and Taiwan. Photographs from Gates' travels to Algeria, the Amazon river, Andamanese Islands, Australia, California, Canada, Canadian Arctic, Cuba, England, Gibraltar, Italy, India, Japan, Kenya, Morocco, New Guinea, Russia, Sicily, South Africa, South Rhodesia, Spain, Swedish Lapland and Tunisia; photographs of plant life, particularly oenothera ; lecture slides; photographs used for publication in various books and articles by Gates; photographs of human and ape skulls and skeletons, photographs of people suffering from genetic diseases and personal photographs. Appointment diaries, 1921-1962. Personal and professional correspondence, including personal financial papers, 1903-1962. Papers relating to professional memberships and conference material, 1922-1962; press cuttings collected by Gates, 1915-1962 and printed material collected by Gates and his widow, 1928-1966, on subjects relating to his research including oenothera , botany, race, blood groups, physical anthropology, human biology, genetics, prehistoric man and population.

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.

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.