This series consists of the Private Office papers of Secretaries of State between 1900 and 1935 and from 1938 (with one exception), and of many under Secretaries of State from 1886 to 1948, together with the private papers of many other senior officials and individuals concerned with foreign affairs. Additionally, there are miscellaneous papers relating to international conferences and to the conduct of foreign affairs between 1831 and 1960. The series also contains papers of Edward Heath while Lord Privy Seal with Foreign Office responsibilities for UK entry into the Common Market 1960-1963, and the papers of Sir William Malkin as the legal adviser to the Foreign Office.
The Private Office papers, which record correspondence between the Secretary of State and the Prime Minister, and between the Secretary of State, the under secretaries of state and all other ministers and senior officials - both at home and abroad - who needed to be kept informed, are fundamental to the conduct of foreign affairs.
Records within this series are available to download as digital microfilm.