Looking at your post I think you need to dig further on your John Adam Scott and Margaret Thornton. John left a Bible record (preserved in the Revolutionary War pension application of Martha McCorkle Scott widow of Samuel Scott and available as an image on Ancestry, Fold3 and Heritage Quest) detailing the date of his marriage and the date of his immigration to the colonies and the date of his move to NC. Those dates make it clear that he married Margaret in 1740 before they immigrated and that they immigrated from Ireland in 1745. And they moved to "Carolina" in 1763. John died in Guilford County NC in 1774 and left a will naming his sons Thomas, William and Samuel and daughters Jinnet (Janet), Martha and Nancy. He also names as co-executor Gabriel Scott relationship not named but highly likely to be a brother or cousin. The bible entry also indicates that Margaret Thornton Scott died April 8 1801 not 1780.
John Adams Scott could not have been a Revolutionary War solider in a Virginia regiment since he died in 1774 in North Carolina well before any shots had been fired. However all 3 of his sons were soldiers although only Thomas and Samuel's widow Martha applied for pensions and documented their service.
And he does not name a daughter Hannah which would have been extremely unlikely. If Hannah is the daughter referred to in John's will as Jinnet (which also seems unlikely since Jinnet is a pronunciation of Janet) then she was unmarried at his death in 1774. So most likely Hannah is the daughter of one of the several other Scott families who were in the area.
There are a couple of other Scott individuals in a related Bible record who are attributed to John and Margaret and who died before 1774 and therefore are more likely to have been children, just not named in John's will since they were deceased. Matthew Scott is the most likely of these but there is another possible daughter as well Vilet or Violet. However these relationships are not proven.