Copy of typescript memoir of his RN career, 1914-1918 and 1939-1943, covering his service with the Harwich force in the North Sea, 1914-1917, notably the Battle of Dogger Bank, Jan 1915, at Nore Command, 1918-1919, in the Atlantic convoys, 1939-1940, Norway, 1940, the evacuation of Dunkirk, 1940, as Staff Officer, HQ Western Approaches, 1940-1941, in the Mediterranean,1941-1942, Madagascar, 1942, Malta convoys, 1942, and the landings in North Africa, 1942, Sicily, 1943, and Italy, 1943. Includes copies of naval signals, 1915-1916.

Copy of manuscript memoir relating to Clarke's life and career, 1909-1957, especially to his service as a signals officer in the Middle East, Sicily and Italy, 1942-1945.