Born in 1878; educated at Eton College and Christ Church, Oxford; entered family merchant banking business, becoming a partner in 1904; Lt, Armoured Car Division, Royal Naval Air Service, 1914; Secretary, Landships Committee, Admiralty and War Office, 1915-1916; Chairman, Tank Supply Committee and Director, Tank Supply Department (later Mechanical Warfare Supply Department), Ministry of Munitions, 1916-1917; Lt Col 1916; British Commissioner, Inter-Allied Tank Bureau, 1917-1918; Commissioner for Mechanical Warfare (Overseas and Allies), Ministry of Munitions, 1917-1918; British Commissioner, Anglo-American Commission, 1918; publication of Tanks, 1914-1918: the log-book of a pioneer (Hodder and Stoughton, London, 1919); returned to work as a banker, 1919-1939; Chairman, Special Vehicle Development Committee, Ministry of Supply, 1939-1943; member of Tank Board, 1941; died in 1966.