Aide to Field Marshal Haig in 1917, winning the Military Cross, Croix de Guerre and Médaille d'honneur; seconded to the Foreign Office in 1919 as head of the Secret Intelligence Service's Section V, working on counter-Bolshevism; Director of the Industrial Intelligence Centre, Committee of Imperial Defence (1930-1939); Principal Assistant Secretary, Ministry of Economic Warfare (1939); Personal Assistant to Prime Minister (1940-1946); Vice-Chairman of UN Economic Survey Mission for the Middle East (1949); lent by Treasury to Ministry of Civil Aviation (1950); retired (1953).