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DYER, ISADORE (1865–1920). Isadore Dyer, dermatologist and founder of a leprosy asylum in Louisiana, son of Isadore and Amelia Ann (Lewis) Dyer, was born on November 2, 1865, in Galveston. After receiving his bachelor of philosophy degree from Sheffield Scientific School at Yale University and his M.D. degree from Tulane, he interned and did graduate work at the New York Skin and Cancer Hospital from 1890 until 1892 and at the same time served as a lecturer at a New York postgraduate medical school. After studying in London and Paris in 1892, he lectured on diseases of the skin until 1905, when he went back to Tulane as associate professor of dermatology. He became dean of the school of medicine at Tulane in 1908. In addition to his work there, Dyer served as consultant at various hospitals and founded and became president of the first board of control of the Louisiana Leper Home. He joined the United States Medical Reserve in 1908 and served as president of the examining board of the medical reserve corps and as chairman of the medical section of the state committee of defense, 1917–18. He is best known for his essays, papers, and books on skin and tropical diseases. He married Mercedes Louise Percival on July 31, 1905, and died in New Orleans in October 12, 1920.


Dictionary of American Biography. Vertical Files, Dolph Briscoe Center for American History, University of Texas at Austin. Who Was Who in America, Vol. 2.

Carolyn Hyman


The following, adapted from the Chicago Manual of Style, 15th edition, is the preferred citation for this article.

Carolyn Hyman, "DYER, ISADORE," Handbook of Texas Online (, accessed October 09, 2015. Uploaded on June 12, 2010. Published by the Texas State Historical Association.