Telegram from WSC to President Roosevelt marked "Personal and Top Secret" stating that he would like Field Marshal Sir Henry Wilson [Representative of the British Chiefs of Staff in Washington, United States] to succeed Field Marshal Sir John Dill on the Combined Policy Committee on "Tube Alloys" [codename for atomic research]. Photocopy.

Telegram from President Roosevelt to WSC marked "Personal and Top Secret" stating that he is delighted to have Field Marshal Sir Henry Wilson [Representative of the British Chiefs of Staff in Washington, United States] on the Combined Policy Committee [on atomic research]. Photocopy.

Telegram from WSC to Anthony Eden [later Lord Avon, Foreign Secretary] (Washington [United States]) marked "Personal and Top Secret" informing him of the latest plans for Field Marshal Sir Bernard Montgomery [Commander 21st Army Group] to take Lubeck [Germany]; the advance to Linz [Austria]; and for the Americans to take the region south of Stuttgart [Germany] where the main German "TA" [Tube Alloy, the atomic bomb] research is concentrated. Despatched on 19 April.

Copy of a letter from WSC to Clement Attlee, Prime Minister, marked "personal and private" thanking him for his draft speech on the Roosevelt Memorial Bill; promising to write again about a publication; and discussing demobilisation figures and the possibility of war with the Soviet Union, noting that the Russians are hampered by two reasons "their virtue and self restraint. The second, the possession by the United States of the Atomic bomb."Carbon typescript signed with initials.

Letter from Harry Truman [President of the United States] (The White House, Washington) to WSC explaining that he does not wish to publish the Quebec Agreement as requested by WSC because it will lead to requests for information about the current status of collaboration between the United Kingdom, Canada and the United States and that this would jeopardise the countries and NATO Allies.Signed typescript.

Copy of a letter from WSC to the President of the United States [Harry Truman] asking for the publication of the 1943 Quebec Agreement, arguing that the British Parliament should have access to the facts, that consent from the British government would be needed to use the US air bases in East Anglia for the atomic bomb and this would strengthen the ties between the two countries. He ends by congratulating [Truman] on events in Korea and the Eisenhower mission. Unsigned carbon typescript.

Copy of a letter from WSC to [Dwight Eisenhower, President of the United States] marked "private and secret" in which he discusses his need to do his duty; explains that he is not seeking a "dramatic exit" but feels that East-West liaison through Foreign Offices will not produce a decisive result; and explains the reasons for his belief that there should be a summit meeting between himself, [Eisenhower], and the new leaders of the Soviet Union. Unsigned typescript.

Copy of a telegram from WSC to Dwight Eisenhower, President of the United States, with a draft of a proposed personal message from WSC to [Vyacheslav] Molotov [Soviet Foreign Minister] suggesting that he visits Moscow, because of the illness of [Anthony] Eden [later 1st Lord Avon], in order to "restore an easy and friendly basis" between the United Kingdom and the Soviet Union. Carbon typescript.

Telegram from WSC to Dwight Eisenhower, President of the United States, marked "personal and private" on the improvement in the Soviet "mood" and the need for continued vigilance and defensive rearmament; explaining that the British Ambassador to the Soviet Union [Sir William Hayter] has been instructed to settle minor points with the Soviets; and the need for close co-operation. Typescript.