Douglass was born in
Gifford, Scotland in about 1691. Douglass studied at
Edinburgh (MA, 1705), Leyden, Paris, and
Utrecht, where he received his MD in 1712. He first arrived in Boston in 1716, with letters of introduction to
Increase Mather,
Cotton Mather and
Benjamin Colman. After travelling in the West Indies, Douglass returned to Boston in 1718, where he lived for the rest of his life. Douglass prospered in Boston, and put his money into property, both in the city and in remote parts of the Massachusetts Bay colony. Although he owned houses in Boston, he lived at the
Green Dragon Tavern, which he also owned. In 1746 Douglass offered the town of New Sherburn, where he had purchased a large quantity of land, $500 and thirty acres, with a house and barn, to be used to establish free schools in the town, in exchange for the town changing its name to
Douglas. In common with other educated men of the time, William Douglass pursued a wide range of interests. He knew five languages, accumulated a collection of 1,100 American plants, observed the weather, and studied
magnetic deviation and astronomy. His almanac
Mercurius Novanglicanus, published in 1743, has been called "useful" and "good". His map of New England, which was published posthumously, was, at least in part, the basis for every map of New England published over the following fifty years. He was probably a member of the group of
freethinkers (the "hell fire club") that contributed to
The New-England Courant published by
James Franklin. He engaged in economic, political and medical controversies. Although Douglass was a member of what may have been the first medical society in America, formed in Boston around 1735, he did not always get along with his fellow physicians. In 1721 Douglass described himself as the only physician in Boston with a medical degree. He instructed
John Sprague in medicine. William Douglass died in Boston on 21 October 1752. ==Smallpox inoculation controversy==