John Thacher … m. (1) 6 November 1661 Rebecca Winslow [NYGBR 42:144-47, daughter of Josiah Winslow {1631, Plymouth} [GMB 3:2031-33].
(John Thacher) first married at Marshfield, Mass., (then in Plymouth Colony) November 6th, 1661, to Rebecca Winslow of Marshfield, Mass. … daughter of Josiah Winslow … and of his wife Margaret (Bourne) Winslow.