Doorthy Cobb m. (1) Hingham 9 Sep p1725 Isaac Groce, drowned Billingsgate Harbor, 30 Mar 1742.
↑Source:History of the Town of Hingham, Massachusetts, Vol. 3, p. 280, says Isaac "prob. related to the preceding families", gives no parentage or birth date. Neither does MD article cited. Simon, the father shown on this page, d. 26 Apr 1696, so seems an unlikely candidate. The immigrant Edmund had a son Isaac for whom no information is given, but his age would enable him to be a father of this Isaac.