Margaret Cooper's parents were Isaac Cooper, b: abt. 1776 - d: 20 Jun 1841 in Washington, District of Columbia, and Sarah McKaraher, b:1776 - d: 10 Aug 1841, in Washington, District of Columbia. They are my 4th great grandparents. Her father is supposedly George McKaraher. Isaac Cooper was a framer and gilder in DC with a shop across the street from the original National Theatre. He framed the portrait of George Washington that Dolly Madison saved during the British invasion of DC. He also submitted two bills to Thomas Jefferson for framing. Other 3 children of Isaac & Sarah (McKaraher):Cooper are: 1) Jane Cooper, b: 1804 Georgetown, DC. - d:4 Apr 1857 Clarksburg, Montgomery, MD. married Ferdinand Fairfax Stuck. They are my 3rd great grandparents. 2) Sarah Ann Cooper, b: 1807 - d: 17 Nov 1871 married William Henry Prentiss. 3) Eleanor (Ellen) Elizabeth Cooper, b: 1817 - d: 1898. married Benjamin Franklin Dyer. All of them had numerous children.