Dictionary.net

An American Quaker colonist; born in Berkshire, England, about 1650; died in Chester County, Pa., Feb. 25, 1727. He came with Penn's company to America in 1682, erected the first mills in the province, held many high places in civil affairs, and was a noted controversialist writer of his day. He published a great number of pamphlets and articles in defense of his creed, among them: "A Serious and Seasonable Warning", etc. (1675); "A Modest Account from Pennsylvania of the Principal Differences in Point of Doctrine between George Keith and those of the People called Quakers" (1696); "Satan's Harbingers Encountered", etc. (1700).