Correspondence, memoranda, minutes, lectures, writings, drafts of scientific papers, reports, notes, patient case files, psychological test results, clinical observations and diagnoses, stories and drawings by patients, bulletins, course and student evaluations, seminar discussion files, and other papers documenting Bornstein's career as one of the first Freudian child psychoanalysts practicing in the United States. Includes material on her affiliations with the Community Service Society, Council Child Development Center, Jewish Board of Guardians, New York Psychoanalytic Institute, Philadelphia Association for Psychoanalysis, and Walden School. Also includes family and personal papers.

Correspondents include Edward Bibring, Grete L. Bibring, Peter Blos, Joseph Bornstein, Sylvia Brody, Dorothy T. Burlingham, K.R. Eissler, Ruth Selke Eissler, Otto Fenichel, Anna Freud, Muriel Gardiner, Elisabeth R. Geleerd, Sidney L. Green, Marjorie Harley, Willi Hoffer, Charlotte Honig, Edwin Honig, Anny Katan, Maurits Katan, Robert P. Knight, Heinz Kohut, Ernst Kris, Marianne Kris, Lawrence S. Kubie, Rudolph Maurice Loewenstein, Margaret S. Mahler, Gerald H.J. Pearson, Samuel Ritvo, Milton J.E. Senn, Albert J. Solnit, René A. Spitz, Robert Waelder, Annemarie P. Weil, and Bernard Weinard; and the American Orthopsychiatric Association, Baltimore Psychoanalytic Institute, Boston Psychoanalytic Society and Institute, Group for Applied Freudian Psychology, Institute of the Philadelphia Association for Psychoanalysis, New York State Psychological Association, and Washington Psychoanalytic Institute.