James Vance May (1873–1947), an American psychiatrist,[1] was an early proponent for statistical studies and classification of mental diseases. He was among the first to recognize the mental disease as a public health problem, a view that did not gain recognition and acceptance for many years. May was born in Lawrence, Kansas. He received his AB at the University of Kansas in 1894 and his medical degree at the University of Pennsylvania in 1899. He was a resident at the Pennsylvania Hospital in Philadelphia for one year then moved to the Brigham Hall Hospital in Canandaigua, New York, a private mental hospital where he was in charge of the pathology department and its laboratory. From 1900 to 1902, he served in the U.S. Army during the Philippine insurrection (Philippine War of Independence; Spanish–American War). Following his Army service, he began to work at the New York State Mental Hospital System in Central Islip, New York, but after a short stay, he transferred to the Binghamton State Hospital and stayed until 1911. He became superintendent of the Matteawan State Hospital for the Criminally Insane in 1911 and then moved to another position as a medical member of the New York State Hospital Commission. In 1916, he moved to Massachusetts to become the superintendent of the Grafton State Hospital. Soon thereafter, he transferred to the Boston State Hospital where he stayed as superintendent from 1912 to 1936. In 1913, the American Medico-Psychological Association (later the American Psychiatric Association) established a committee on statistics and May was appointed to serve as a committee member. He stayed involved with the committee for nineteen years and was the committee chair for ten years. As an administrator, he was interested in mental hospital statistics and the classification of mental diseases, which were not uniform in the United States. His interest and work in these areas culminated in a publication in 1922 of the book Mental Disease: A Public Health Problem, at a time when the mental disease was not viewed as a public health issue. The committee on statistics proposed a system of classification of mental disease which was adopted by the organization and became a basis for future change in keeping with advancements in psychiatric research and practice. May contributed numerous research articles to scholarly literature. He spoke German and nearly completed a German-English dictionary of psychiatric terms. He translated a book on schizophrenia by the German psychiatrist Karl Wilmanns. Less