Correspondence, writings, and other material relating to Greenacre's psychoanalytic career. Includes material pertaining to psychoanalytic theory and practice and to organizations including the American Psychoanalytic Association, the International Psycho-Analytical Association, and the New York Psychoanalytic Institute. Includes drafts of her unpublished study of H.C. Anderson. Correspondents include Simon A. Grolnick, Marjorie Harley, Selma Kramer, Ernst Kris, J. Moussaieff Masson, Jerome D. Oremland, and Albert J. Solnit.