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Henry M. Thomas, Jr., was born in Baltimore. He earned his B.S. from Haverford College in 1912 and his M.D. from the Johns Hopkins University in 1916. He interned at Massachusetts General Hospital and was a resident at Boston City Hospital on the pneumonia service. He returned to the Johns Hopkins Hospital as an assistant resident in 1920. In 1922, Thomas joined the faculty of the School of Medicine and three years later was on staff at the hospital. By 1939, he had achieved the rank of associate professor. He entered the U.S. Army Medical Corps in 1917 and remained in the active reserve from 1919 to 1941. During World War II, Thomas reached the rank of colonel and distinguished himself as a medical consultant in the southwestern Pacific. In 1945, he was awarded the Legion of Merit. Thomas was the author of 57 publications. His principal investigations were concerned with the pathological physiology of the heart and circulatory system in thyrotoxicity. He wrote extensively about diseases of the thyroid gland and made valuable contributions to the observation of the fingernails in hyperthyroidism.

Scope and Content

The Henry M. Thomas, Jr., Collection spans his entire career at Johns Hopkins. It contains family and professional correspondence, military service records, patient histories, manuscripts, scientific notes, association records, governance documents, speeches, and reprints. The collection documents Thomas’ career on the faculty of Johns Hopkins University in the department of medicine, his military activities in the United States Army, and his varied activities in the local community. Two boxes of World War II correspondence as well as his chapter, “Medical Consultant History of Internal Medicine World War II ” are of particular interest.

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