Correspondence relating to Penson's career, including personal correspondence, 1924-1962, with various, notably Geraldine Emma May Jebb, Principal of Bedford College, James Baxter, Sir Wilmot Parker Herringham, Chairman of Bedford College Council, Lascelles Abercrombie, Goldsmith's Reader in English at Oxford University, Stephen Gaslee, Professor Maj Harold William Vazeille Temperley, Professor of Modern History at Peterhouse, Cambridge University, Fanny Cecilia Johnson, former Head of the French Language and Medieval Literature Department at Bedford College, Benedict Humphrey Sumner, Fellow in Modern History at Balliol College, Oxford University, Professor Lizzie Susan Stebbing, Professor of Philosophy at Bedford College, Charles William Previté-Orton, Professor of Medieval History at Cambridge University, Dame Margaret Janson Tuke, former Principal of Bedford College, Margaret Deanesly, Professor of History at Bedford College, and Alexander Augustus Frederick William Alfred George Cambridge, 1st Earl of Athlone, Chancellor of the University of London; correspondence, 1925, concerning Penson's appointment as a Lecturer at Birkbeck College, University of London; correspondence, 1930-1947, relating to Penson's time as Professor of Modern History, Bedford College, University of London, including details of her appointment, 1930, papers concerning the running of the History Department, 1931-1946, and papers relating to the International Committee of Historical Sciences, 1932-1936; correspondence and papers relating to the Institute of Historical Research, London, 1932-1936, and the Royal Historical Society, 1937-1938; correspondence and papers relating to the University of London, notably the establishment of the School of Slavonic and East European Studies, 1932-1934, and the Colonial Studies Institute, 1942-1948, and Penson's positions on the University Board of Studies in History, 1930-1933, the Imperial Studies Committee, 1934-1935, the Board of Examiners in History, 1930-1942, and the Fulbright Scheme, 1960; correspondence, 1939-1960, concerning foreign universities, including the Universities of East Africa, Rhodesia and Nyasaland, Khartoum, Malta and the West Indies, the Nigerian College of Technology and the Royal Technical College of East Africa, with pamphlets on education in Africa; general academic correspondence, 1921-1960; correspondence concerning the award of a DBE in 1951. Material relating to works by Penson, [1922-1963], including manuscripts and research notes for books, such as the unpublished 'Obligation by treaty'; papers on Foreign Office archives and education in the colonies; texts of public lectures and addresses, radio talks, and history lectures, [1922]-1960; notebooks on medieval Europe to c1200 and European diplomatic history, [1922-1963]; reviews of books and articles by Penson, 1938, 1948-1959. Photographs, [1900-1960], mainly of Penson, but also including family and academic group photographs. Correspondence concerning Penson's Memorial Fund and Service, 1960-1966.