Found this in somebody's record on Ancesty.com. Need to look into it further but it includes Robert Sidney and Elizabeth Posey Stanfield. They have a son Robert Sidney 1783-1854. There is a picture of a headstone for him in a Presbyterian church cemetery in Gwinnet County. This story was posted:
I see that a "death date" of 1786 is given to Robert.
I'm of the mind that this date is not based on any certain knowledge, but rather is based on the fact that on Sept 4, 1786, SC Governor William Moultrie granted to some Elizabeth Adair a tract of land on 23-Mile Creek, waters of Keowee River, in Pendleton District, SC.
I will play along with everyone else & assume this Elizabeth is the widow of Robert S. Adair. There are other Adair families in the Pendleton area, but in what little time I've spent looking at records, I don't see any prominent female named Elizabeth among these other families. And the known children of Robert S. & Elizabeth are born prior to 1786. One source I saw says that besides children Robert & Nancy, that there was another son named George.
On the 1800 census, Elizabeth is shown with 2 sons. One is certainly Robert S. & the other must either be this George or else he could be Elizabeth's son Adam Huffman, b. abt 1774 from her 1st marriage. Your guess is as good as mine, but for now, I'm putting a George Adair in my tree as a provisional son. Both sons on this 1800 census are shown 16-25, or b. between 1775 and 1783 when their father's said to have been killed.
So for these reason, I'm assuming that the 1820 Pendleton Co. census for Elizabeth Adair also pertains to the widow of Robert S.
In the book "Pendleton District, SC Deeds, 1790-1806", I find the following references:
Page 286 of book, referring to pg 152-3 of some deed book--Oct 7, 1801. James Canseller sells to John Swansey 100 acres, being part of 200 acres granted to Elizabeth Adair (or Oliver, editor wasn't sure he could read it) by Wm. Moultrie 4 Sep 1786 on 23 Mile Creek of Keowee River. Witnessed by John Kensler, Margaret Wilson...Recorded Oct 24, 1802.
Page 366 of book, referring to pg 183-4 of deed book--Mar 4, 1805. Hugh Porter, executor, sells to Robert Porter 133 acres on Willson's Creek of Rock River, adjoining land of Robert Parker's heirs, John Parker, James Parker, and the Widow Adair. Recorded March 11, 1805.
It's not 100 percent clear that either of these transactions pertain to Elizabeth Adair, but they probably do.
The 1810 Pendleton Census has a listing that Ancestry's Index calls "Edd Adair", but I read the microfilm as "Est. Adair", meaning the Adair Estate. That entry shows a female 25-45 with a couple of younger people in the household. I don't know if this could be Elizabeth on this census, shown perhaps a little young, or if it's some other Adair family.
After looking at messages posted on Genforum, I find that Robert was said to have lived up in VA during the first part of the Rev War, but that he was harrassed so much by Loyalists that he removed to the area of Abbeville or Pendleton, SC, and that he was killed in 1783 near his home by Indians and/or Tories while he was returning from the surrender of Cornwallis, or this is some approximation of the situation. (see Posey Genforum message 1466)
That being the case, maybe his widow Elizabeth filed Rev War pension papers that I'm not aware of, if people were filing such papers at that early date, and at any rate, the Rev War service of her husband Robert must have been the basis for her land grant in Pendleton District.
Looking at messages on the Posey page of Genforum leads me to think that Elizabeth had a brother named Hezekiah Posey. He and other Posey males were living in Granville, SC in the 1770's era. Hezekiah moved from around Abbeville, SC to TN in 1796 & later went to AL, I think. He filed pension papers as a Rev War vet. (see Posey Genforum message 2346-7)