The info I have on Rebecca Chadbourne is from "Chadbourne/Chadbourn Genealogy" by William Morrell Emery. Page 15:
Rebecca was b 9 Apr 1780 and d 5 Oct 1831 at Gorham, Cumberland, Maine. Her husband Gen. James Irish b 18 Aug 1776 "of Gorham, ME" d 30 Jun 1863. They were married 2 Sep 1798. I do not have the info on their children, but it may well also be in the same book. Hope that helps.