Papers and correspondence on the formation of the BIIA, and on various BIIA meetings and publications, particularly the History of the Peace Conference and the Annual Survey of Foreign Affairs.

Mainly JWHM's correspondence as Historical Adviser to the Foreign Office, correspondence with fellow historians and the press, particularly on the origins of the war, and also correspondence on the Royal Institute of International Affairs.

Letters, drafts, memoranda, newcuttings, articles and other papers regarding the Commonwealth. Much of the material relates to Carrington's work at the R.I.I.A. Many of the articles and drafts are annotated by Carrington to explain the circumstances under which they were written and the way in which they were used.