Abstract: This collection contains professional and personal papers of Jacques M. May when he was the director of the Medical Geography Department at the American Geographical Society. The collection includes research for the Atlas of Disease, which was a series of maps, or plates, published by the American Geographical Society during the 1950s. Medical statistics, preliminary maps, epidemiology of diseases, bibliographies, and academic studies of diseases are included as research for the Atlas of Disease. The Atlas of Disease was originally to contain 25 plates; only 17 were published. Each plate corresponds to a specific disease, or group of diseases. Other professional activities of Jacques M. May are documented in the collection, along with a small amount of personal correspondence and family photographs.