The handwritten copy of the Bible record at the Library of Virginia, has Sally's birth as 15 Feb 1747. A transcript which appears in The Virginia Genealogist, Vol 1, p.89, 1957, has her birth as February 20, 1747. I believe this was a confusion between Sarah (George) Blakey who was born Feb 20, 1692 and wrote in the Bible that she, her father Robert George, and grandfather Isaac George were all born on February 20th. Both ladies were Sarah "Blakey" - but the elder was a Blakey by her marriage to Churchill Blakey; this Sarah was the daughter of a Blakey, Thomas Blakey.
Sarah George "Sally" BLAKEY and David PATTERSON were married on 15 April 1763 in Buckingham County, Virginia.112 David PATTERSON was born on 14 July 1741. He died on 24 February 1806 at the age of 64 in Sycamore Island.
Sarah George "Sally" BLAKEY and David PATTERSON had the following children: