[says that Rachel Thomas married William Covington, son of John Covington and Hannah Dockery, about 1777 in Rockingham, Richmond, North Carolina]
Imported gedcoms, by their very nature, should be considered unreliable sources. Rachel's presumed marriage to William Covington, son of John Covington and Hannah Dockery, seems to be based on faulty research in the past which has since been challenged and corrected. For a further discussion of the problems with that purported marriage, and with the very existence of such a William Covington, see William Covington.
William Covington, son of Henry Covington and Mary Blackistone m2 abt 1774, Rachel Thomas, b. 1754, d. in Kentucky, 1827, age 73 William Covington's will was proven 1794 (Will Book 1, Richmond County, NC).