The collection is divided into three groups of papers relating to personal and political affairs. Part I contains papers covering the life of Lord Kennet, including his service in the Royal Navy and his political career. There is much correspondence, including letters from his father, Sir George Young, 1882-1930, and mother Alice, 1888-c. 1914; a long series of letters from E.M. Forster; and letters from many prominent inter-war politicians, including Stanley Baldwin and Lloyd George, as well as Lord Kennet's friend, Neville Chamberlain. The papers also include diaries and a wide range of miscellaneous subject matter, including an autobiography, a biography, photographs, newscuttings, cabinet papers, speeches, material relating to ornithology and poetry, and broadcasts and printed articles on a variety of subjects.
Part II comprises the papers of Kathleen Young, Lady Kennet. They include bound volumes of letters from Max Beerbohm, c. 1907-1908, Fridtjof Nansen, 1911-1929, and George Bernard Shaw, 1908-1940, and a series of diaries, illustrated with drawings and photographs, c. 1907-1946.
Part III contains supplementary papers that became available after the first two parts had been completed. Section A includes bound volumes of correspondence between Edward Hilton and Kathleen Young, 1919-1946, and letters from H.H. Asquith and various other correspondents to Kathleen Young. Section B contains papers examined at Leinster Corner, comprising mainly letters by authors stuck into copies of their printed work, as well as a Register of Sculpture and photographs of Sculpture by Kathleen Young.