In the Book, "The Saga of the Seawrights" by Nell Seawright Reeves on page 36 we find a portion of Charles Town (SC) Deed Book.
Land sold to Samuel Agnew and his wife Elizabeth Seawright Agnew:
100 acres land.......It being the same tract of land which belonged to the wife of James Seawright........transferred to Samuel Agnew and wife, Elizabeth Seawright Agnew (P192-93) Dated 18 March 1773.
Samuel is listed as one of those who fought with the Patroits who lived in the Boonesborough, SC Area, on page 47 of the Seawright Book.
On Page 114 of the Seawright Book, Elizabeth Seawright, b 12 Apr 1747, Ireland; d. 1815, Abbeville Co, SC; came to SC 1763; Married 1770 to Samuel Agnew, b. 29 Jan 1738, Rapho Township, Lancaster, PA; d. 2 May 1791, Abbeville Co, SC; he came to SC in 1770, settled near Due West, SC; fought in the Revolutionary war; son of James Agnew, Jr. (1711, Balloo, Ire.-1770) and Rebecca Scott (1707-1784); Bur, Greenville Pres. Ch
I will send other information later from Book "Greenwood County Sketches".