Microfilm copies of papers relating to his life and career, dated 1906, 1913, 1914-1918, 1925, 1928-1931, [1933]-1934, 1940, 1944-1946, principally comprising letters, telegrams and postcards to his wife Noel Charteris, 1914-1918, notably describing his intelligence work at 1 Army HQ and BEF General HQ, 1914-1918; letters from Brig Gen Sir James Edward Edmonds commenting on the proofs of At GHQ (Cassell and Co, London, 1931), 1929, 1931; correspondence relating to his writings on FM Douglas Haig, 1st Earl Haig, 1928-1931; typescript text of lecture on the role of the Intelligence Service during World War One, dated 1925; notes and newspaper cutting concerning allegations about British use in World War One of a propaganda story about the German Army boiling down dead troops for fats, 1925; obituary reprinted from The Royal Engineers Journal, 1946. Copies of group and family photographs, [1895-1920], with photograph of railway bridge over the River Beas at Rohi, India, under construction by No 1 Company, 1 Prince of Wales' Own Sappers and Miners, 1910.