Abner McCarty

Although it is not yet proven, circumstantial evidence strongly suggests that Abner, born about 1793 in North Carolina, is a son of David Carty, Sr., and therefore a brother of John Patrick Carty. John P's death record lists his parents as David and Mary Carty.
Abner purchased 20 acres on Molls Creek in 1814, and we know that John P. also lived on Molls Creek. The 1820 Russell County census shows David Sr (>45), David Jr and Thomas in the 26-45 age bracket and Abner and John P in the 16-26 age bracket. Then in 1830, William W. is listed in the 20-30 age bracket. These are probably all sons of David Carty Sr.
If Abner was age 21 when he bought the land, he would have been born in 1793, although the 1850 census lists him as age 52, born in NC. NC would be correct if his father, David, arrived in Carter Co., TN prior to its formation from Washington County, NC in June 1796.
Generally, John P's descendants who stayed in Russell County, VA used the name Carty, whereas, most of Abner's, David Jr's, and Thomas Wiley's children, who went to Kentucky, used the name McCarty.

Source: Max Ervin