Correspondence and manuscripts. The collection includes manuscript drafts and typescripts of two volumes of his autobiography: THE OLD CENTURY AND SEVEN MORE YEARS, 1938; and THE WEALD OF YOUTH, 1942. There are also 13 volumes of early notebooks for the period 1894 until 1909 (from age 8 to 22) containing drafts of over 200 poems, 19 short stories and many drawings. There is some correspondence about the autobiography. Also includes 21 letters from Arnold Bennett, 51 letters from Lady Ottoline Morrell, 26 letters from H.M. Tomlinson, 19 letters from Sassoon to his mother-in-law, Lady Gatty, 22 letters from Sassoon to his son, letters from many others, and a typescript of his poem "A love affair" with holograph note

Files dealing with publishers, the editing of manuscripts, serial rights, copyright, translation rights, financial accounts, and the like. Among the correspondents are A.P. Graves, Thomas Hardy, Frederick T. Jane, W.E. Norris, Alfred Ollivant, John Pendleton, William H. Rideing, Hall Caine, Prince Peter Kropotkin, Marie Adelaide Belloc Lowndes, Douglas Sladden, and Mary Augusta Ward (Mrs. Humphry Ward).