Papers relating to Juliet Rhys Williams' work on economics, taxation reforms, wages policy, and Commonwealth trade; her membership of the European League for Economic Co-operation, the United Europe Movement, the European Movement, and other European groups; correspondence, articles and pamphlets relating to European issues; correspondence, speeches, conference papers and pamphlets from the Liberal Party; material concerning Rhys Williams' involvement in the Conservative Party, mostly relating to the Monday Club and elections; papers relating to commercial television, and film making; documents relating to the building and administration of Cwmbran New Town; papers relating to Rhys Williams' time as Churchwarden of St Anne's, Soho, and as vice-president of the St Anne's Society; material relating to the publishing and winding up of the 'European Review' and the 'Economic Digest'; minutes of the Bishop of Llandaff's Committee on hardship in the Rhondda Valley; Rhys Williams' collected writings, correspondence, and pamphlet and newsletter collections; papers relating to projects and societies in which Rhys Williams was involved; and family papers relating to property owned by the Rhys Williams family, family finances, photographs, Elspeth Rhys Williams (her daughter) and Sir Rhys Rhys Williams (her husband).

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comprise government publications and reports, 1951-1959, on the Uganda Protectorate, including trade and commerce; unpublished manuals, 1952-1954, relating to trade; handbooks, 1955-1958 and undated, largely relating to trade; press cuttings, 1956-1957, the subjects including community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.