Sir James Headlam-Morley's papers include: a large amount of personal correspondence with family, friends and colleagues; some personal papers, including Else Headlam's diaries; a voluminous series of literary papers, ranging from Headlam-Morley's early academic work on classical subjects to his later interest in more modern German history, particularly relating to Bismarck, and articles and pamphlets written while working for the various propaganda departments during the war and afterwards as Historical Adviser to the Foreign Office; papers from his work in university education, including the University Extension movement, meant for those unable to attend university, and also as an inspector of secondary schools for the Board of Education, mainly relating to the teaching of history, classics and modern languages; a large number of papers and correspondence from his wartime propaganda work for the Department of Information and the Foreign Office, from the Versailles Conference, and also his post-war work as Historical Adviser to the Foreign Office.