I am married to John Sanders of Laurel Hill, Fl which is where Allen Sanders & Dorcas Sanders are buried. He is also a decendant of Nathaniel Sanders of Barnwell Co., SC. Allen is the oldest Sanders buried in Almarante cemetary and you can see a picture of the graves for both on laurelhillnow.com and clicking on the cemetary. We are not sure if he is the first Sanders to come to the area but if the dates are correct could not possible be the son of Nathaniel. I know there is a family tree done by a relative of my husbands but have not been able to get a copy as of now. It supposedly covers from Nathaniel through present day Florida Sanders. I am going to try to contact them and find out what site it is on and will share the information if I can find out. My husband was always told that Nathaniel had disowned his son that came to Florida but then had left him an inheritance which he never went to get but unfortunately we do not know what that son's name was.