Archibald Armstrong b. ca. 1770 in prob. Christiana Hundred, New Castle Co., DE; married Rebecca/Rebeckah Morton bef. 1792, prob. in New Castle. Was she daughter of Mathias and Abigail (Treahorn) Morton? He had dau. Rebeckah listed in will prob. 6 June 1785. Have Archibald's father, John; grandparents Archibald & Ann Armstrong. Archibald, Sr. d. bef. 18 May 1775, date will probated; Ann d. bef. 9 Apr 1785.