Correspondents include: Gordon Lang and Duncan Sandys (joint letter); Robert Boothby; Thomas Martin, Director of Organisation of the United Europe Movement, and Deputy Secretary General, Congress of Europe, London Secretariat (7); Duncan Sandys (5); Freda Smith [Sandys' secretary] (4); Christopher Fogarty [Assistant Principal] (HM Treasury); Sir Philip Nichols [British Ambassador to the Netherlands] (4); John Peck [1st Secretary, British Embassy, the Hague] (2); Prime Minister Clement Attlee (2); Laurence Helsby [Principal Private Secretary to the Prime Minister]; Emanuel Shinwell [Chairman, National Executive of the Labour Party]; [William] Stephen King-Hall; Harold Macmillan [later 1st Lord Stockton]; George Hicks declining membership of the British handling group for a United States of Europe; Henry Hopkinson [later 1st Lord Colyton, Head] of Conservative Parliamentary Secretariat [and Joint Director, Conservative Research Department]; Paul van Zeeland; Sir Roderick Jones reporting Field Marshal Jan Smuts' views. Also includes notes and copies of correspondence from secretaries Lettice Marston [later Lettice Shillingford], Jo Sturdee ("N S") [later Lady Onslow], Elizabeth Gilliatt and Chips Gemmell; CSC; and from WSC to some of those mentioned above and to Sir Archibald Jamieson.Other subjects include: WSC's role as President of the Hague Congress; WSC's arrangements for the Congress; reaction to WSC's speech at Zurich [Switzerland, 19 September 1946].Also includes: copies of papers, leaflets, etc. from the United Europe Movement (including a memorandum by Sandys), the (Joint) International Committee of Movements for European Unity, and the European Parliamentary Union; copy of the Volkskrant [Dutch newspaper] and various cuttings, including an article by WSC entitled "The High Road of the Future"; currency exchange forms; itinerary of WSC's journey; copies of Congress of Europe political and social and economic reports and resolutions; text of an article by Anthony Eden [later 1st Lord Avon]; notes of a United Europe delegation to Attlee; text of a motion by Ronald Mackay, Sir Peter MacDonald, Christopher Shawcross, Leslie Hale, and Sir Peter Roberts; copy of "Europe Unites: the Hague Conference and after" with a foreword by WSC; Netherlands News bulletin; an 1871 statement by Victor Hugo.