"William Griggs was of Rumney Marsh (Chelsea) in 1659 and is said to have been there from 1640 to 1662. By 1671 he was in Gloucester, Mass., where he was living as late as 1682 (Records and Files of the Quarterly Courts of Essex County, Mass., vol. 1, p. 197; vol. 8, p. 372). He moved to the part of Salem that is now Beverly by 1692 where he was the town physician, owning 9 books on physics (Sidney Perley’s History of Salem, 1928, vol. 3, p. 250-257). In that year he was prominent in the witchcraft persecutions, sustaining the position that many people including his wife’s niece Elizabeth were bewitched. His will, dated 10 Feb. 1693, was proved 18 July 1698 (Danvers Historical Society, The Historical Collections, vol. 4(1916), p. 83-87)."