This material reflects the broad range of Jenkins' career as a trade union leader. Two substantial series of minutes and related papers record his membership of the British National Oil Corporation board (1979-1982) and the Labour Party Commission of Enquiry (1979-1980).
Trade union matters account for the majority of the subject files, especially Jenkins' early involvement in the civil aviation industry during the 1950s and 1960s. The emphasis is on campaigns, rather than administration (see main ASTMS archive), except for two files regarding the reorganisation of ASSET (MSS.79/6/CJ/3/11-12). There are also a number of files regarding Jenkins' visits abroad as part of union delegations, including the USSR (1957 and 1963), North Vietnam (1970) and the USA (1974). The remainder relate to his involvement with the Labour Party and, more briefly, various other organisations, including the Campaign for Nuclear Disarmament (CND).
The range of information contained in subject files varies considerably. Many contain mainly reference material, such as press cuttings and publications, rather than correspondence. The latter are often internal union communications or circulated papers, sometimes annotated by Jenkins. Material from a number of sources reveals Jenkins' prolific use of the media to publicise his activities and that of his union. His published work, including books, newspaper columns and articles are represented here, together with appearances on television and radio. Articles range from short, comic pieces to lengthy commentary on industrial affairs. Speech notes comprise headings and brief notes rather than expanded drafts.
There are some subject files regarding 1970s advertising campaigns and activities are also documented through collections of photographs and press cuttings. There are some letters (writers include the politicians Harold Wilson, Michael Foot and Tony Benn) but no substantial series of correspondence with any individual. The diaries contain appointment information only. Some personal items have been deposited, including school reports and membership cards.