I am glad to hear from you. I'm happy to report that, as far as I can tell, you do descend from the line of Kings from Caswell County, North Carolina that I have been researching.
I'll list a brief summary here, and I'll write to the email address that you have listed with additional details and relevant documents.
I am presuming you are talking about the Ernest King born 18 Feb 1912 in McDowell County, West VA, and died 31 Jan 1996 in Columbus, Franklin, Ohio.
Ernest King married Mary Anderson on 31 Jan 1931 at Eckman, McDowell, West VA.
Ernest King was the son of James King and Tora Turner.
James King, born around 1875 in Caswell County, NC was the son of Albert and Martha King. And I believe that Albert King, born about 1829 in Caswell County, NC was the son of Rogers and Matilda King, former slaves of Robert J. King, Jr. (d. 1857) in Caswell County, North Carolina.
Tora Turner, born about 1871 in Caswell County, North Carolina, was the daughter of Jordan and Matilda Turner. Tora's first marriage was to Preston Smith on 25 Oct 1890 in Locust Hill, Caswell, North Carolina. She had several children by him. Tara married James King on 26 Dec, 1910 in Welch, McDowell, North Carolina.
Look for an email from me either later tonight or tomorrow.