General correspondence, 1950-74, to Desmond Donnelly and carbon copies of letters from him, including letters form Dean Acheson, Sir Anthony Eden and Sir Roy Welensky and other prominent British and international political figures; papers relating to various topics including Pembrokeshire politics and general elections, 1916-1968, Donnelly's foreign travels and international affairs, 1949-1972, his publications, 1958-1966, the United Democratic Party, 1969-1970; a scrapbook relating to the British Empire Cricket Team, diary extracts, papers and other personal material, 1941-1974; copies and drafts of articles and speeches by Donnelly, 1949-1973; and a large group of press cuttings, 1921, 1946-1978. There is also a scrapbook belonging to John Wynford Philipps, 1897-1908.

Papers of Merfyn Jones relating to the Liberal Party, 1964-1989, comprising papers and correspondence of the National Liberal Association, 1964-1988; papers, correspondence and minutes relating to the Welsh Liberal Party, 1965-1987, and on subjects including policy, 1969-1986, devolution, 1976-1979, and European Elections, 1977-1984; correspondence and minutes relating to Ceredigion and Ceredigion and Pembroke North Liberal Associations, 1966-1988, and papers relating to general and local elections, 1973-1987; papers relating to Aberystwyth Liberal Association, 1968-1988, to University College of Wales, Aberystwyth, 1977-1989, and to the Association of University Teachers, 1979-1988; newspaper cuttings, 1964-1988; personal papers of Merfyn Jones and correspondence with Liberal politicians, 1965-1988; printed material, [1968]-1987; papers relating to Young Liberals at national and local levels, 1966-1976; papers relating to the Social and Liberal Democrats, 1984-1988.

Extensive and wide ranging records of the Pembrokeshire Conservative Association, including files of local branches, 1930-1990; and files relating to the following: general administration, 1949-1994, (including general correspondence, 1956-1994); area organization, 1950-1991; local committees, 1955-1994; women's groups and events, 1950-1990; local government, 1950s-1986; elections, 1954-1987; parliamentary candidates, 1952-1974; Rt Hon. Nicholas Edwards MP, 1972-1989; Nicholas Bennett MP, 1987-1992; social events, 1957-1988 (including draws, 1960-1988, and Colby Cup Whist Tournaments, 1961-1990); constituency issues, 1981-1988; national politics, 1951-1992; national organization, 1954-1984, including party conferences, 1969-1990; visits of politicians, 1961-1987; publications, 1962-1994; press cuttings, 1976; and miscellanea, 1984-1988.