BAYLIES, William, physician, born in Uxbridge, Massachusetts, 5 December 1743; died in Dighton, Massachusetts, 17 June 1826. He was graduated at Harvard in 1760, studied medicine, and settled in Dighton, where he practiced with success. He was a member of the provincial congress of Massachusetts in 1775, and also a, member of the state convention that adopted the federal constitution. In 1783 he was a state senator, and in 1801 was a member of the electoral College. From 1805 till 1809 he served as a representative from Massachusetts in congress. Dr. Baylies was one of the founders of the Massachusetts Medical Society and a member of the Academy of Arts and Sciences, and of the State Historical Society. His two sons, William and Francis Baylies, were distinguished lawyers.*Francis, born in Taunton, Massachusetts, 16 October 1783; died there, 28 October 1852, studied law in the office of his brother, and was admitted to the bar. From 1812 till 1820 he was register of probate in Bristol County, Massachusetts, and from 1827 till 1832, and again in 1835, he was a member of the Massachusetts state legislature. He was elected to congress and served continuously for three terms, from 1821 till 1827. In 1832 he was appointed charg6 d'affaires to the Argentine Republic, but soon returned home. He was the author of a valuable "Historical Memoir of the Colony of New Plymouth" (2 vols., Boston, 1830), which has been republished, with notes and additions, by S. G. Drake (Boston, 1866).