Family papers including material concerning the estate of Joseph and Daniel Meenan (1883–1916); Revd John A. Meenan and the Monaghan Feis (1912–13); and the estates of Patrick Meenan and James Nahor Meenan [Meenan’s father] (1945, 1957).

Personal material including diaries (1923, 1929–83); correspondence including letters between him and Lord Geoffrey Crowther concerning the Royal Commission on Devolution for Scotland (1969); and mementoes and letters informing him of the conferral of honours and awards (1980–1981). Includes letters to his parents and essays written while a student at Clongowes Wood College, county Kildare (1923–8); letters and postcards to his family and photographs from his travels (1928–9; 1936–8) including his travelling studentship in Italy (1933–5).

University College, Dublin: material concerning student societies and publications including UCD Boat Club (1922–30, 1960, 1962); the Literary & Historical Society [L&H] (1867–1956); Catholic University L&H Inaugural Addresses (1837–8, 1868–74); Robert Dudley Edwards term as Auditor (1929–30); Meenan’s own term as Auditor (1932–3); and the 1960–2 sessions when the Society was banned; UCD Dramatic Society (1929–31), Student Representative Council (1931–2), The National Student (1931, 1936). Material concerning his career in UCD including his appointments as Statutory Lecturer and to the Chair of Political Economy and National Economics (1951, 1961); lecture notes (1948, 1955); departmental administration and development; Governing Body elections (1952–3, 1955); NUI Senate elections (1954, 1964, 1969); and letters concerning Meenan’s candidature for the 1964 UCD Presidential election. Copies of official college and student publications.

Company director and board member, involvement with cultural, economic and charitable Organisations. Includes material concerning the Irish Banks’ Standing Committee (1964, 1975, 1977, 1979, 1981); Trusthouse Forte (Ireland) Ltd (1968–72, 1980–2); Maguire and Paterson (1972); Statistical and Social Inquiry Society of Ireland (1933–57); and the Royal Dublin Society (1926, 1959–81), including material concerning the 250th Anniversary of the foundation of the RDS.

Publications and lectures. Correspondence as Editor of the History of the Literary and Historical Society University College Dublin (1954–8); draft essays and appendices, reviews, notes, research material and photographs concerning the book. Material relating to The Italian Corporative System (1942–51); the proposed book The Great Famine (1945, 1949, 1950s, 1981) and other publications, papers, lectures, reports, articles, appreciations, reviews and broadcasts including Thomas Davis Lectures (1959, 1961, 1964, 1971). Letters concerning George O’ Brien. A Biographical Memoir (1978–1985). Material concerning the Father Tom Finlay—Dr George O’ Brien Lecture (1962, 1965, 1972);