The John R. Ostfield papers consists of some correspondence, various reports, daily records, and subject files. The papers have been divided into medically related and non-medically related Subject Files and Correspondence. The Subject Files Series has been divided into two areas: medically and non-medically related. The medically related subject files contain Dr. Ostfield's records on treating patients with venereal disease and some of his daily records, ledgers, etc. The remainder of the files pertains to various aspects of medicine, all of which have been broken down quite specifically. The non-medically related subject files include his Army extension course material, life insurance information and other miscellaneous papers. The Correspondence Series, dating from 1928-1949, and arranged chronologically, consists of incoming letters dealing mostly with his appointments to various positions or his Army extension course.