The following should be of interest: From "Ipswich in the Massachusetts Bay Colony", by Thomas Franklin Waters (The Ipswich Historical Society, 1905): In Part I, at p. 490 is to be found Appendix "A" (A Summary of the First Settlers from 1633 to 1649 with the First Year, when the Name occurs for the First Time in the Town Records), at p. 492-----John Knowlton (1639), William Knowlton (1641), and Thomas Knowlton (1642). In Oct., 1639, John Knowlton purchased a lot, with one small dwelling, from William Fuller (Ipswich Town Records). From "The Hammatt Papers, Early Inhabitants of Ipswich, Massachusetts, 1633 - 1700", by Abraham Hammatt (Genealogical Pub. Co., Inc., Baltimore, 1980 ---a reprint), at p. 186 we find that John Knowlton became a "commoner" in 1641. Clyde