Papers relating to his medical career with the RN, 1939-1952, dated 1908, [1943]-1950, principally comprising typescript texts written as Chief Malariologist with the British Pacific Fleet, [1943-1946], including accounts of his work in Singapore, Hong Kong and Pacific Islands; typescript texts by Mockler and others on malaria and its treatment, [1943-1946]; official annual reportsas Naval Medical Officer of Health, Hong Kong, 1951-1952; lecture notes circulated at the RN Medical School, Alverstoke, to accompany a course on radiological defence, [1947]; British, Australian and US military publications on health and medical issues, 1942-1950, mainly malaria and tropical diseases.

Papers of John Gunn, 1926-2002, including extensive correspondence, notes, memoranda, funding applications, lecture presentations and press cuttings. The collection includes: files concerning the administration of the Institute of Psychiatry and its Department of Forensic Psychiatry, 1975-2000 (including policy, planning, funding, assessments and staffing), and the running of the Denis Hill Unit forensic in-patient service, Bethlem Royal Hospital, 1985-1998; published articles, book, chapters and book reviews by Gunn, 1966-2001, on topics including epilepsy, aggression, sex offenders, mental health legislation and suicide prevention in prison; research and research applications, 1966-2001, on topics including epileptic offenders, violence, and the discharge and subsequent care of Special Hospital patients; psychiatric questionnaires and assessments, 1967-1988; files relating to the Home Office, chiefly 1966-2000, and relating to the treatment of mentally disordered offenders, also copy medical evidence given to the Wolfenden Committee on Homosexual Offences and Prostitution, 1954, and papers relating to the May enquiry, 1989-1992, into the convictions for IRA bombings in Guildford and Woolwich, 1974.Prison Service correspondence and reports, 1975-2000, covering the provision of secure psychiatric units and psychiatric care of the general prison population; papers, 1975-2000, relating to the UK Special Hospitals (high security psychiatric hospitals), and to Grendon experimental prison for offenders with antisocial personality disorders; correspondence, meeting papers and background information on the impact of amendments and proposed amendments to UK mental health legislation, 1972-2000, including the Floud Committee on dangerous offenders, 1976-1981, and the work of the Parliamentary Mental Health Group in formulating policy to restrict the spread of AIDS (Acquired Immune Deficiency Syndrome), 1987-1988; reports and correspondence, 1972-2001, relating to the conduct of psychiatry, psychiatric facilities and prison welfare in countries including Australia, China, Egypt, Greece, Ireland and Turkey; papers, 1967-1999, relating to the Effra Trust, founded by Gunn in 1974 to provide accommodation and support to homeless male ex-offenders suffering from physical or mental disability.