OSS/London: Special Operations Branch and Secret Intelligence Branch War Diaries is a themed microfilm collection relating to US Office of Strategic Services (OSS)intelligence analyses and special operations in Western Europe, Jun 1942-Jun 1945. The collection includes Special Operations Branch organisation charts and directives, orders and summaries, Jun 1942-Jul 1944; Special Operations (SO) Branch and OSS training schedules; papers relating to Special Operations Branch liaison with Scandinavian Special Operations Executive (SOE) Section; reports on military and strategic objectives relating to Operation OVERLORD, the Allied invasion of France, Jan-Sep 1944; estimates of Special Operations personnel strength, Apr-Jun 1944; reports on resistance movements in Norway, Denmark, and Poland; summaries of Secret Intelligence Branch Operations, Apr-Sep 1944; list of decorations, commendations, and payments to families of the Special Operations and Secret Intelligence Branch casualties; biographies of Secret Intelligence personnel; reports from Secret Intelligence Branch operations in the Netherlands, France, Poland, Czechoslovakia; Germany; Secret Intelligence Branch liaison with the OSS; photographs of American and British Special Operations Branch officers; photographs of Maquis, French resistance, operatives; report from the Special Mission on German Methods of Demolition and Sabotage, Sep-Dec 1944; reports on Polish resistance fighters in France, 1944; lists of code names and code words used by the Special Operations Branch; reports from military, demolition, intelligence gathering, and espionage missions in Western Europe, 1944; after action summaries from the OSS Reports and Registry Division, London, and the OSS Reports Board, Paris, France, 1 Jan-15 Jun 1945.

Papers relating to his life and career, 1936-1961, principally comprising diary of tour of Germany to assess capacity of industrial installations, Apr-Jun 1945, written in [1945-1946] and including related reports and photographs of sites visited, 1945; record of service pocket book, 1936-1948.

German socialist propaganda leaflet Die Feldpost, including articles relating to rising commodity and food prices in Germany and the necessity of German troops in the Balkans, Dec 1915; edition of German newspaper for German prisoners of war in France, Grüsse an die Heimat, May 1917; Central Powers propaganda leaflet, in English, calling for a cessation of hostilities, 1917; four Allied leaflets bearing photographs of HM Albert, King of Belgium and HM Elisabeth, Queen of Belgium, 1918.

Bound typescript memoir by Duncan entitled 'Camp leader' relating to his experiences in civilian internment camps in occupied Denmark and Germany, 1940-1944, with additional biographical notes by Duncan's son, John Daniel Duncan, Sep 1997.

Look back with pleasure', typescript memoirs covering his life and career, 1897-1965, notably his service in Mesopotamia and Palestine, 1915-1918, India, 1919-1925 and 1957-1962, Africa, 1939-1944, Germany, 1945-1950, and Cyprus, 1964-1965, written in 1971.

Collection includes five postcards, four of which are of British troops from 1 Airborne Div at Hotel De Tafelberg, Oosterbeek, Netherlands, during Operation MARKET GARDEN, the Allied attempt to establish a bridgehead across the Rhine river at Arnhem, 17 Sep-25 Sep 1944, and one of the Airborne Monument at Oosterbeek, built by J Maris, 1946; and a personal account by Henk B van der Horst entitled, Paratroopers Jump, Fury over Arnhem (Boekhandel Romijn, Oosterbeek, 1946), relating to the Allied airborne offensive at Arnhem, 17 Sep-25 Sep 1944.