In the Book "Colonial Records of the South, 1732-1774" Miscellaneous Rosters; page 1072-1073 # 33 William Lewing is on the muster roll of Captain John Stuart's company beginning July 15, 1756 ending March 27 1757 at Ft. Loudoun (present day Tennessee) A Cherokee massacre occurred there in 1760 after William's departure. This is a record of his service to the Crown in the French and Indian War.
In "Anson County Records", Page 143 William Lewing was paid a debt from the estate of Andrew Berry (estate records page 301-302) Mecklenburg was part of Anson before 1760.
In a letter written by Gladis Graham Kiser (a descendant of Jethro Lawing) to a cousin in 1982 she passes along second hand information without identifying the source. "He was born in London, England area and by the time he came to America he and his sister were orphans. His sister Ruth stayed there. He is said to have been 18-20 years old when he arrived in Philadelphia. I have been unable to find the ship listed with his name..."