admin JOHN ELLIS MARSHALL was born at Norwich, Conn., March 18, 1785. He began the study of medicine with Dr. Philemon Tracy, of Norwich, being licensed to practice in 1808. Soon afterward he opened an office in Oxford, N. Y., and the following year removed to Mayville, Chautauqua County. He was Clerk of Chautauqua County in 1811, and in 1812, and Surgeon to the Second Regiment of the New York State Militia. He served five months with the army defending the Niagara Frontier, and later served through, the campaign of 1814. In 1815, he removed to Buffalo. He was corresponding Fellow of the Medical and Philosophical Society of New York City, a member of the Medical Society of Geneva College, and President and Treasurer of the Erie County Medical Society. During the cholera epidemic of 1832, he was Health Physician. He was Clerk of Niagara County from 1819 until 1821. He was a prominent Mason and a ruling elder of the First Presbyterian Church, of Buffalo.
September 12, 1810, Dr. Marshall married Ruth Holmes, daughter of Orsamus Holmes, of Sheridan, N. Y. The issue of this union was one son, Orsamus Holmes Marshall. Dr. Marshall died in Buffalo, December 27, 1838.
SOURCE: Memorial and Family History of Erie County New York; Volume I