MS.Add.8309: Notebook containing the first draft of The meaning of meaning, 1901-1911, 95 pages, the work Ogden co-authored with the literary critic I.A Richards.
MS.Add.8310/I: Correspondence with the authors of Psyche miniatures and Psyche monographs, 1922-1956.
MS.Add.8310/II: Miscellaneous correspondence concerning Psyche, 1921-1938, including many letters from the editors, W. Whateley Smith and Warren J. Vinton.
MS.Add.8310/III: Miscellaneous papers concerning Psyche: orders, accounts, invoices, promotional material, lists of addresses, 1926-1954, c. 200 items.
MS.Add.8311: Letters from Ogden's friend James Wood, c. 1908-1975, 393 items.
MS.Add.8312/I: Correspondence between Ogden and Ivy Litvinov, the British-born wife of the Soviet Foreign Minister, 1930-1937, 208 items, concerning their efforts to introduce Basic English into Russia.
MS.Add.8312/II: Other items relating to Basic English in Russia, mainly letters to Ogden, 1930-1956, 132 items.
MS.Add.8312/III: Newspaper cuttings relating to Ivy Litvinov, 1933 - c. 1943, 30 items.
MS.Add.8313: Letters from E.B.F. Wareing, 1912-1953, 149 items, many dating from his time in Germany with the Inter-Allied Rhineland High Commission between 1918-1929.
MS.Add.8313: Other items, 1898-1940, 19 items, mainly correspondence.
MS.Add.8314: Miscellaneous letters to Ogden, 1889-1952, 60 items, including many from Goldsworthy Lowes Dickinson.