Harmon, John B. (1780–1858).
John B. Harmon, of Warm, Ohio, founder of the Harmon family in Ohio, was born in Rupert, Vermont, October 19, 1780. He was one of the pioneer physicians of Trumbull County, coming to Ohio with his parents in 1800. He first studied medicine with Dr. Josiah Blackman of Vermont and subsequently with Dr. Enoch Leavilt of Leaviltsburg and in the War of 1812 served as army surgeon A leading surgeon of that section of the state, he performed several major operations before the days of general anesthesia, in 1822 removing a cancerous mass from beneath the liver. About four years before his death, which occurred February 7, 1858, he retired from active practice. On February 6, 1822, he married Miss Sarah Dana of Pembroke, New York, and had six children, John, Julian, Charles, Edward, Sarah and Willie. Of these, Julian became a physician and practised in Warren, Ohio.