From Chronicles of Scotch-Irish in VA is the following:
Courses of a Patt Gran--Cocke, son and heir to Wm.--deceased,Chicheley C orbin Ga--Francis Thornton, Jr., and Wm.--dated 10br ye20th, 1718. Beg inning at a small marked White Oak standing by a greatSwamp Side calle d Messapannox about 3 miles from ye Falls ofRappahannock River, it bei ng ye most Northerly Corner of a greattract of land patented by Coll, L awrence Smith and Mr. RobertTaliaferro, both deceased, and now in ye p ossession of Capt. CharlesSmith and oyrs, from which beginning it exte ndeth along ye saidCharles Smith's line South 73, crossing ye foresai d SwampNassapannox to 1 Red Oak leaving ye said land and dividing it f rom yelands not yet surveyed.
