When Grace Coulbourne was born in 1714, in Somerset, Maryland, British Colonial America, her father, Solomon Coulbourne, was 30 and her mother, Rachel Handy, was 21. She married Marcy Beauchamp about 1737, in Somerset, Maryland, British Colonial America. They were the parents of at least 5 sons and 5 daughters. She died on 15 August 1781, in Murderkill Hundred, Kent, Delaware, British Colonial America, at the age of 67.