These papers represent a small portion of the work Dr. Ludwig was involved in during his career, focusing primarily on research he undertook in the 1950s. There is nothing here about his private practice. The files include grant applications and reports of research on connective tissue, which was under the direction of Paul Klemperer, MD, Director of Mount Sinai's Department of Pathology. There is also a folder of material that includes a letter from Norman Boas, MD about a research project they had begun that seems not to have been published. Of note are two slim notebooks where Dr. Ludwig recorded research data, as well as reviews of articles he had read on the topic. He inserted hand drawn charts and tables. They are an interesting example of how a clinician did research at this time.
Six photographs are included in this collection. The originals were scanned to create digital copies and were returned to Mrs. Ludwig. The photographs include four in a series from 1966 that show Dr. Ludwig meeting with house staff in the Department of Medicine, and then going on rounds in the Klingenstein Clinical Center. There are also shots of the First Medical Service staff in 1947 and the Second Medical Service house staff in 1943. Printouts of the scans are also filed in the Photograph Collection.