Correspondence, memoranda etc. as Governor of the Straits Settlements and High Commissioner for the Malay States, regarding the fall of Singapore and Malaya's war effort.

Notes on war experiences before internment, 1941-1942, and diary written in Changi Jail, 1942-1945 (manuscript draft, from which Changi, the lost years. a Malayan diary, 1941-1945 (Kuala Lumpur, Malaysian Historical Society, 1984) was published.