Manuscript narrative diary relating to Dewing's service as Director of Military Operations, War Office, and as Chief of Staff to ACM Sir (Henry) Robert (Moore) Brooke-Popham, Commander-in-Chief Far East, 1939-1941; two typescript narrative diaries relating to Dewing's service as Head of Army and Air Liaison Staff, Australia, 1943-1944, and as Head of Supreme Headquarters, Allied Expeditionary Force (SHAEF) Mission to Denmark, 1944-1945, with typescript 'Notes on my relations with Swedish Services and Government' [1945]; typescript biographical account of Dewing's career by his son, William Dewing [1979].

Papers relating to his RAF career, 1939-1951, dated [1939-1951], 1984-1985, [1987], 1991, 1993, particularly his service in the USSR, 1941, and Sweden, 1948, principally comprising photographs of Haw and his RAF colleagues, [1939-1951]; press cuttings, 1941, [1946], 1948, 1956, [1987], 1991, [1993]; 'Pilot's notes for Spitfire 22 and 24 Griffon 61 engine' (Air Publication 2816 B andC), prepared by the Air Ministry, 1947, with amendments list, 1950. Audio tape of interview with Paul Hamlin, 1993, concerning Haw's service at Coolham Airfield in 1944.