Correspondents include: Sir Harold Caccia, British Ambassador to the United States; Dido Cairns; Amalia Karamanlis; Arnold Carey Foster; Joan, Lady Carton de Wiart [earlier Joan Sutherland] on the death of Sir Adrian Carton de Wiart; Harold Macmillan, Prime Minister, John Hewitt, Secretary for Appointments to Prime Minister, Derek Mitchell, Under Secretary to Prime Minister, Alexander Douglas Home [later Lord Home of the Hirsel], Prime Minister, regarding honours; [3rd Lord] Dudley [earlier Lord Ednam]; Freda, Marquesa de Casa Maury [earlier Freda Dudley Ward], regarding the Feathers Club; Lord Casey, Governor General of Australia; Desmond Flower, Director of Cassell and Company Limited, enclosing books for WSC (3); Oliver [1st] Lord Chandos [earlier Oliver Lyttelton]; Jean Chauvel, French Ambassador to Great Britain; Sir George Thomson, Master of Corpus Christie College, Cambridge on his obituary of [1st Lord Cherwell, earlier Frederick Lindemann]; Professor Brebis Bleaney on the Cherwell Simon memorial fund; Sir Alfred Chester Beatty on WSC's paintings and on the Chester Beatty Library; George Christ, Parliamentary Liaison Officer of the Conservative and Unionist Party; John G Churchill on financial matters and the loan of WSC's paintings (5); Peregrine Churchill; Pamela Churchill [later Pamela Harriman] on the end of her marriage to Randolph Churchill (3); [1st] Lord Cilcennin [earlier James Thomas], on his resignation as First Lord of the Admiralty; "Dickie" [Lord Mountbatten of Burma]; Frank Clarke on gifts to WSC and CSC (4); Hermione, Lady Cobbold; Sir John Cockcroft; "Jock" [John] Colville on subjects including Churchill College (5); Harriet Coville (6); Lady Diana Cooper [later Diana, Lady Norwich]; Sir Colin Coote (4); [4th] Lord Cottesloe [earlier John Fremantle] on a letter from Lord Nelson (4); Richard Coudenhove-Kalergi on subjects including the Cold War and European integration; Domini, Lady Crosfield; George Gordon Allen; and [1st Lord] Cunningham of Hyndhope.Also includes: reproductions of portraits by Douglas Chandor of CSC, WSC and Queen Elizabeth II; a photograph of Lord Cherwell; obituaries of Lord Cherwell and Franz Simon; copies of correspondence from WSC to the individuals mentioned above; notes and copies of correspondence from Doreen Pugh and Catherine Snelling [Secretaries to WSC] and Anthony Montague Browne [Private Secretary to WSC].