Correspondence, 1981-2000, of Susan Llewellyn with the literary agency Curtis Brown Ltd, relating to their management of Richard Llewellyn's copyrights and royalties in America. The file contains royalty statements, copyright agreements, copyright renewal certificates, etc., relating to various publishers such as Simon & Schuster and Macmillan Publishing Company, mainly but not exclusively in relation to How Green Was My Valley. Also included are original and copy agreements, and associated correspondence of Richard Llewellyn, with Doubleday & Company, Inc., 1959-1977.