Keyes Papers. Vol. i. Correspondence with:
1. Albert I and Elisabeth, King and Queen of the Belgians (1909-1934); 1918-1941.
2. Albert Victor Alexander (afterwards 1st Earl Alexander of Hillsborough), 1st Lord of the Admiralty (1929-1931 and 1940-1945); 1929-1943.
3. Lt-Gen. (afterwards Field Marshal, 1st Earl of Tunis) Harold Rupert Leofric Alexander, GOC-in-C Southern Command (1940-1942); 1941.
4. Brig.-Gen. Cecil Faber Aspinall-Oglander (formerly Aspinall), Chief of General Staff (Gallipoli) (1915-1916), retired 1920, author of the two volumes on Gallipoli in the Official History of the War and biographer of Keyes; 1918-1934, n.d.
Admiral of the Fleet Roger John Brownlow Keyes, 1st Baron Keyes: Brigadier-General Cecil Faber Aspinall-Oglander form. Aspinall, biographer of Admiral of the Fleet Sir Roger Keyes: Correspondence of Adm. of the Fleet Roger John Brownlow Keyes and Brig.-Gen. Cecil Faber Aspinall-Oglander: 1918-1934, n.d.
Admiral of the Fleet Roger John Brownlow Keyes, 1st Baron Keyes: Harold Rupert Leofric George Alexander, 1st Earl Alexander of Tunis: Correspondence of Adm. of the Fleet Roger John Brownlow Keyes and Harold Rupert Leofric George Alexander: 1941.
Admiral of the Fleet Roger John Brownlow Keyes, 1st Baron Keyes: Albert Victor Alexander, Earl Alexander of Hillsborough: Correspondence of Adm. of the Fleet Roger John Brownlow Keyes and Albert Victor Alexander: 1929-1943.
Albert I of Belgium: Admiral of the Fleet Roger John Brownlow Keyes, 1st Baron Keyes: Albert I of Belgium; Elisabeth: Correspondence of Adm. of the Fleet Roger John Brownlow Keyes, Elisabeth and Albert: 1918-1941.