A file of correspondence with inscription 'D.O. Letters', including Ministry of Transport and Civil Aviation; Major R.A. Kidd from War Office re. Cantlie's report to LAMA; the Punch magazine on jokes Cantlie complained about; writer Michael Barrington on his book on Viscount Dundee and women's rights; British Limbless Ex-servicemen Association Ball 13th December 1951 and Cantlie's invitation to join the organizing committee under Marchioness of Carisbrooke; Miss Robinson-Smith, New York, re. Cantlie's trip through Central America in 1951 and political developments; Cantlie appearing in BBC Any Questions? programme; George Binney of the United Steel Companies Ltd.; Lord Riverdale of Capital Steel Works, Sheffield; Sir Rob Lockhart of the Boy Scouts Association about Cantlie joining the Guild of Old Scots; engineer rear-admiral W. Scott-Hill; C.C. Wang of Chinese Government Purchasing Commission re. fishing holidays and a luncheon with Sir Robert Calder-Marshall; Nock re. Cantlie's letter in the Railway Gazette and visiting London; Asiatic Society on their house being once used by the College of Ambulance the was founded by Sir James Cantlie; various hand-written letters from friends in Britain, Scotland, Paris and New York; correspondence with Sir Frederick Leith-Ross re. Japan, Burma and a Mission to China 1940; correspondence and reports with A.T. Houldcroft re the Freeman Process of extracting oil from coal 1937-1938.