Division within FO1636-1973Records of Private Office and Private Papers
Records of private offices and private papers comprising the correspondence of foreign secretaries and under secretaries, senior officials and diplomats.
Private office papers of secretaries of state since 1900, with one exception, and under secretaries since 1886 are in FO 800, together with private papers of many other senior officials and diplomats. Correspondence concerning ambassadors and senior diplomats is in FO 794 and miscellaneous private collections are in FO 323.