Subjects include: accompanying Winston Churchill to Devonport to welcome HMS Exeter [on her return from the battle of the River Plate], then going on the Royal Naval College at Dartmouth, February 1940; controversy over renaming new battleships; work on Churchill's speech for the naval Estimates, February 1940 and visiting the Fleet; a dinner for Churchill given by the Parliamentary lobby journalists, February 1940; a visit to the Vickers works at Barrow-in-Furness [Lancashire], for the launch of HMS Indomitable, by Clementine Churchill, March 1940; wondering whether to go with Churchill if he left the Admiralty; reaction to the German fleet reaching Narvik [Norway], April 1940 and Churchill's statement to Parliament; meeting the captain of HMS Gurkha after her sinking; invasion fears and whether to evacuate the children to Canada, July 1940; the success of Churchill's speech to Parliament on the sinking of the French fleet at Mers-el-Kébir [Algeria], July 1940; visiting military exercises in Kent, then going on to Chartwell, July 1940, Churchill's love of his fish and animals in general and his bricklaying; visiting troops along the south coast; Seal's dislike of Sir Horace Wilson [head of the Civil Service] and liking for Sir [Percy] James Grigg, Permanent Under-Secretary of State for War; plans for Seal to return to the Admiralty as Deputy Secretary, December 1940; news of the capture of Bardia [Libya] from Italian forces, January 1941; weekends at Chequers [Buckinghamshire] and the good relationship between Churchill and Harry Hopkins [Special Adviser and Assistant to President of United States]; a visit to Southampton and Portsmouth to see the bomb damage, January 1941, Churchill's closeness to the United States, Seal's poor impression of Wendell Wilkie and his liking for Clement Attlee; Churchill enjoying the break of doing a speech for a debate on MPs with appointments abroad, February 1941; bomb damage at Buckingham Palace, March 1941; Churchill insisting on watching the Blitz from the roof, March 1941; Churchill's good relations with the Trades Unions; warning Churchill that his plans for reconstructing the Government were inadvisable, May 1941; the decision to send Seal to the United States, May 1941; life in Washington, 1943 and Seal's plans for his return home.

Also includes an invitation and table plan for a luncheon to welcome John Winant, the new American Ambassador, March 1941.