Material issued by the following groups: Anti-Apartheid Movement; Afro-Asian People's Solidarity Movement; Africa Bureau; Action for Southern Africa; Alf's Imperial Army; Africa Publications Trust; Anti-Slavery International; Association of West European Parliamentarians for Action Against Apartheid; Africa Youth Movement; Catholic Institute for International Relations; Coalition to Stop the Use of Child Soldiers; Empire Industries Association; International Association of Democratic Lawyers; Justice and Peace Commission; Monday Club; Movement for Colonial Freedom; Movement for Religious Freedom in Africa; Pan-Africa; Southern African Development Coordination Conference; Union of Democratic Control; World Summit on Sustainable Development; Women's World Summit Foundation.

The papers are extensive, relating to almost every aspect of Blackett's career in science and public life. There is biographical and personal material including large numbers of letters of congratulation received on the occasion of the various scientific and public awards and honours with which Blackett's achievements were recognised. There are records of his work on particle disintegration, cosmic rays, astrophysics and magnetism in the form of laboratory notebooks, working papers, correspondence, lectures, publications and broadcasts. There is documentation of his activities on various defence projects and as a member of government committees before, during and after the Second World War. Blackett's political interests are represented by material relating to the Association of Scientific Workers, Labour Party discussion groups on science and technology policy and the Ministry of Technology instituted after the Party's 1964 electoral victory. There are records of a wide range of science-related interests such as the history of science and technology, science, education and government, and nuclear weapons and disarmament, and of his overseas activities including material relating specifically to India and that concerned with matters more generally affecting developing countries.

A few lacunae in the surviving material have been identified. There are no documents relative to Blackett's service with the National Research and Development Corporation or the Department of Scientific and Industrial Research and, of his correspondence during the Second World War, only that for 1942 survives.

Records, 1920-1963, of the Christian Literature Bureau for Africa and its succession by the ICCLA (International Committee on Christian Literature for Africa, part of the International Missionary Council), comprising early papers, 1920-1929, including correspondence; minutes, 1929-1958; records of the American Section, 1924-1959; accounts and related papers, 1928-1958; finance papers, 1948-1959; policy papers, 1929-1959, including its winding-up; papers relating to personnel, 1947-1956; papers relating to Secretarial travel by Margaret Wrong and C de Mestral in Africa, Europe and north America, 1933-1959; photographs of West Africa, 1933, and Southern Africa [1936]; papers of Margaret Wrong (Secretary), 1935-1947, including notes for addresses, reviews, articles on subjects including colonial development, personal photographs, letters, and papers, 1949-1965, relating to her death (c1949) and memorial fund; reports, surveys, etc, 1923-1957; papers relating to Books for Africa series and to Listen, 1931-1963; papers relating to the publication Daystar, 1948-1957; lists of books received, especially vernacular, 1930-1957; African language publications, 1930-1951; papers relating to Christian literature for Muslims, 1932-1959; papers relating to school service book, 1938-1953; manuscripts received, 1933-1957; papers relating to hymns publication, 1957-1963; papers relating to literacy [1935]-1959; papers on territorial series, 1927-1959; complete set of Books for Africa series, 1931-1963; complete set of Listen, 1932-1957; series (some incomplete) of published works: Little Books for Africa, African Home Library (comprising texts on the Bible and Christian faith, biography, allegories and stories, family, health and land, government and industry, countries and customs, science and education), and the French edition Bibliotheque de la Famille Africaine, and African Features; specimen periodicals published in Africa, 1950s; card index to titles for Books for Africa books reviewed and card index to titles and authors in the ICCLA library.

Philippine Republic Government Presidential Economic Staff Industrial Programmes Office Reports and Projects Department Position Papers and related papers and press cuttings, 1965-1969, collected by Ernest A Findorff, including information on industrial production and manufacturing, agricultural production and processing, and mining; correspondence, comprising 138 letters, 1969-1970, between Findorff and importers and exporters in south east Asia, largely those in the Philippines seeking markets in Europe.

Papers, 1951-1981, of Maurice Alfred Maybury, relating to his professional posts.
Papers relating to Uganda, 1951-1962, comprise government publications and reports, 1951-1959, on the Uganda Protectorate, including trade and commerce; unpublished manuals, 1952-1954, relating to trade; handbooks, 1955-1958 and undated, largely relating to trade; press cuttings, 1956-1957, the subjects including community development, banking, and official visits; miscellaneous papers, 1955-1962 and undated, including an invitation, economic survey on Uganda, and calendars.
Papers relating to Ethiopia, 1963-1974, comprise reports, 1970-1972 and undated, documenting his advisory work on commerce, industry and tourism; written accounts of the Ministry of Commerce, Industry and Tourism, undated; miscellaneous reports and proposals, 1963-1974 and undated, the subjects including prices, grain, and foreign and domestic trade.
Papers relating to Lesotho, 1954-1981, comprise Maybury's offer of employment as Export Promotion Adviser, 1975; general United Nations staff information, 1954, 1973-1977; UNCTAD/GATT International Trade Centre briefing papers, 1973-1974; Maybury's official project reports, 1976-1977 and undated, on export promotion in Lesotho; correspondence relating to the same project, 1977; additional reports and papers by Maybury, 1977, relating to trade promotion; miscellaneous reports and proposals, 1971-1981 and undated, relating to trade promotion.

Papers of the Catholic Institute for International Relations (CIIR), notably relating to South Africa, including papers relating to the African National Congress including minutes of meetings, papers on projects; press releases, correspondence and papers on the conference on South African debt rescheduling, Jul 1989. Papers relating to South Africa on topics including prisoners; Nelson Mandela; churches; violence; workers; children and repression; labour and trade unionism; unemployment and migration; women; international monitoring of elections; federalism; sanctions; debt and South Africa's relationship with the UK. Papers relating to other organisations working in South Africa including: Catholic International Cooperation for Development and Solidarity; South Africa Advisory Committee; South Africa Inter Agency Group; Southern Africa Catholic Bishops' Conference; South Africa Council of Churches; National Conference of Churches in South Africa; Johannesburg Democratic Action Committee; Five Freedoms Forum; Southern Africa Coalition; Anti-Apartheid Movement and Christian Concern for South Africa. Papers relating to Zimbabwe including photographs; papers on conferences; CIIR publications on Zimbabwe; papers relating to Zimbabwe Detainees Defence Committee including letters from Robert Mugabe and papers relating to the Zimbabwe Diaspora Development Chamber of Commerce. Papers on other countries and regions with which CIIR had involvement including Angola, Botswana, Lesotho, Malawi, Mozambique, Namibia, Sri Lanka, Southern Africa, Tanzania and Zambia.

Papers of Margaret Read, comprising travel notebooks and diaries, dating particularly from the 1940s onwards; photographs, including albums of overseas visits and tours, dating from 1919, particularly in Africa; personalia; drafts of published and unpublished writings; correspondence.

Records, c1946-1985, of Christian Aid and its predecessors, comprising correspondence, minutes and reports concerning aid projects in Africa, Asia, Europe, the Middle East, Latin America and the Caribbean; papers of the Directorate including constitutional material, committee minutes of the British Council of Churches, and Christian Aid Board papers; organisational material including correspondence with other fund-raising bodies such as Oxfam, the Red Cross, and a selection of Christian Aid publicity material including Annual Reports.

Papers and correspondence, 1949-1991, of Andrew Hake, accumulated during the course of his career in Kenya as an industrial missionary. The papers reflect the diversity of his work and interest in the urban and industrial community in Nairobi. The collection also includes publications collected by Hake, including Kenyan government publications and publications of the National Christian Council of Kenya.

Papers, 1977-1988, relating to the Club de Dakar, comprising correspondence, research papers and publications. Includes lists of members; press cuttings; conference and discussion papers; minutes of meetings; reports; accounts and publications.

Papers of the Commonwealth Trade Union Council (CTUC), 1979-2004, including papers relating to the setting up of the CTUC from the Commonwealth Trade Union Conference Jun 1979 and report of the meeting of the Steering Subcommittee of the conference on Commonwealth trade union co-operation, 19 Nov 1979. Agenda, minutes and associated documents relating to Steering Sub Committee meetings, 1980-1981; minutes, agenda and papers for Special Meetings of the Steering Committee, 1981-1989; Steering Committee minutes, 1982-2004; minutes, correspondence and other papers of the CTUC Charitable Trust Committee, 1981-2004 and CTUC General Session Minutes, 1980-1997; Subject files arranged alphabetically on related organisations and Commonwealth nations, 1980-2004; Project files containing photographs and papers relating to projects undertaken by CTUC including in the Caribbean, Southern Africa, India, Bangladesh, Sierra Leone; East Africa and West Africa, [1981]-2003; papers from project workers meetings reporting the work done by project workers in various Commonwealth countries, 1991-1997 and agendas, debriefings and memoranda from Project Committee meetings, 1986-1990; CTUC annual reports and related documents, 1996-2001; papers relating to the CTUC 20th Birthday Appeal, launched 29 Mar 1999; CTUC circulars and attachments,1982-2004, including announcement of Patrick Quinn as new Director, 1988 and papers relating to CTUC conferences, 1980-1999.