There were 2 William Sheffield's both from NC and both moving to Ga.This according to a poster on another forum.
See the post below: John of Duplin who died in 1790 was not the father of William of Bulloch County, GA.
The true son of John of Duplin and Elizabeth Pernal Graddy Sheffield traveled with Elizabeth (his step-mother) and the three youngest sons (his step-brothers)and William Graddy (Elizabeth's son) of John to first Laurens County and then Pulaski County, GA after John died. None of these Sheffield men ever went to Bulloch. Isham 1780/ Elizabeth Jane Roberts, West 1788/Mary Renfro and Arthur 1790/Permelia Phillips the three youngest sons first went to Laurens and were later found in Early County. But the true older son of John -- William Sheffield b. about 1756 in Duplin married Rebecca Lee and is so documented in Duplin, Laurens and Pulaski and eventually dying in Pulaski.
Isham Sheffield born about 1780 son of John Sheffield from Duplin County and was living in Laurens Co. GA., in 1815 as was William Grady. Isham made a deed dated 9 June, 1815 to William Grady conveying 48 3/4 acres of land in Duplin Co. and being a part of a 293 acre tract devised him by his father, John Sheffield. Deed Book D page 120 Laurens Co. GA.
9 May 1792 Deed, William Sheffield, and Rebecah, his wife, of Duplin County, NC, to Thomas Lee of Jones County, NC. "Wheras John Lee, deceased, of that part of Craven, now Jones County, North Carolina, did hold by patent 280 acres which was granted May 23, 1757 and willed "..."80 acres to son, William Lee who has since died leaving a daughter Rebeccah, who has married William Sheffield, sell this 80 acres to Thomas Lee for 100 pounds. Witnesses Benjamin Granade, Barbary Phileman.
William of Bulloch never went to Duplin. The children that people try to tie to William of Bulloch have similar names, but they are not that William's children.
Amos is not Amos Austin, but just Amos -- he is the son of William of Duplin who died in 1786 and left a widow Sarah and two sons snd two daughters unknown. The sons Amos and John who both were born, lived and died in Duplin. Amos and John married sisters, in Duplin, by the name of Brooks, so documented.
William of Bulloch's children all lived in Bulloch. Austin married Sarah Geiger. Part of what I am trying to find right now are relatives from William of Bulloch's line in order to try to find their true descendancy line.
While I am at it I will also say that the older Arthur/Lucretia Hogan (wound up in TN) and West/Susan Sherrod that were born mid-1700's were not John of Duplin's sons either. They were the sons of William Sheffield of Bertie/Northampton along with the older Ephraim who married Tabitha and lived and died in Northampton. They are found there before 1790 with that William's land in their possession. They sold that land before going to SC.
There is a great deal of data in Pioneers of Wiregrass Georgia, unfortunately much about the Sheffield family is incorrect.