Correspondence with Smuts on subjects including: accounts of military operations on the Tugela River [South Africa]; the Irish Convention (1917); the Palestine Campaign; the need for a separate Air Staff; costs of the separate war fronts; peace negotiations following the First World War; migration to South Africa; the Locarno Pact; the Imperial Conference (1926); LSA's Empire Tour; the proposal that Smuts should become High Commissioner of Palestine; the South African flag; the League of Nations and the former German colonies; the partition of Palestine; the South African Protectorates [Swaziland (later Eswatini), Basutoland (later Lesotho) and Bechuanaland (later Botswana)]; Germany's Anschluss with Austria; Czechoslovakia [later Czech Republic and Slovakia] and the Munich Pact; the coming of war; policy on India, particularly the appointment of an Indian High Commissioner to South Africa; the progress of the war in North Africa, the Mediterranean and the Eastern Front; relations with the United States; a biography of Smuts, "Grey Steel", by Harold Armstrong; the trial of John Amery; the Indian constitution; the recognition of Israel; General Elections (in Britain and South Africa).

Other correspondents include: [Arthur] Neville Chamberlain on the future of the Empire Marketing Board; 1st Lord Sankey [Lord Chancellor] on the Privy Council's attempt to extend its authority in South Africa; Allen Lane, Director of Penguin Books Limited (3); Sir Reginald Coupland.