son of the late Prof. Alpheus Benning Crosby, professor of surgical anatomy at Bellevue hospital, New York city, and grandson of the late Prof. Dixi Crosby, the celebrated physician and surgeon who was dean of Dartmouth's medical faculty for thirty years. His preparatory studies were pursued at Holderness school, Holderness, N. H., and at Tufts college, Somerville, Mass. He received his medical education at Bellevue Hospital Medical college, New York City, and at the Dartmouth Medical college, at which institution he graduated with high honor and distinction in 1890. Prior to his graduation he was appointed demonstrator of anatomy and prosector at Dartmouth Medical college. In 1890 he commenced the practice of his profession in New York city, where he was appointed clinical assistant in the Benito-urinary- class, out-patient department of Bellevue, and also to a similar position in the Vanderbilt clinic. At the same time, he received the appointment of clinical assistant in the throat department of Bellevue. In 1891 he was appointed assistant visiting surgeon, 0. P. D., of St. Mary's hospital, which position he filled until March, 1892, when he removed to Exeter, NH, where he is now engaged in his profession. In the same year he graduated at the Broome Street Midwifery dispensary in New York city. He is a member of the New York County Medical association, and fellow of the New Hampshire State Medical society. In 1895 he was elected a member of the American Academy of Social and Political Advancement, and also appointed pension examiner by President Cleveland. By reason of his interest in the Humane society, he was appointed by Sheriff Coffin deputy sheriff to enforce the laws for prevention of cruelty to animals, in 1893. In 1891 he presented to the profession the Crosby Surgical Needle Holder," an improved and valuable instrument in the practice of surgery. He is unmarried.

Source:
- New Hampshire Men: A Collection of Biographical Sketches; compiled by George Higgins Moses (1893)