Shirley, I don't have it worked out.Here are some details/complications/puzzles.
"Laird Lynn had at least 2 daus, Margaret (m. John Lewis),
and another who married a Cathay. Their dau, Sarah Cathay(b. 1700 , d. 1765)
m.1718 co. Antrim, N. Ireland to Samuel Given (b. 1680, Co. Antrim, Ireland,
in 1737 went to Orange Co. VA."
Samuel Givins applied for headrights in Orange Co. Feb. 28, 1739 for himself, Sarah his wife; John, Samuel, James, Martha, Elizabeth, William, Margaret, Sarah & Jane Givens, his ch.
Patric McCaddau (from Ireland)
the same day also,
James Cathey, Ann, his wife; Wm, Elizabeth, Andrew, George, Margrot & Ann Cathey
Robert McDowell, Martha, James, Margrot & William
John McDowell, Magdalene, his wife; Samuel, his son & John Rutter, his servant
(from Grt Britain)
other families that day were Ledgerwood, Lepper, Steavenson, Blair, Morphet, Turk, Camble and Mitchel
The next day, 29 Feb 1739,
Wm Smith, Elizabeth his wife
Elizabeth Stanton, Ricahrd Wilson, Edward Lampart, Margaret McMurrin, Mary Grady & Richard Cross
(from Grt Britain or Ireland)
Ephraim McDowell (being old), John McDowell, his son, James & Margaret McDowell
Augusta Co. had been laid off by that time, but not organized I believe, and all business for Augusta County was still transacted in Orange County courts.
"John Lewis and Samuel Given jointly took oath as justices of the peace in 1739 in Orange Co Va. The Lewis family were neighbors of George and Martha Washington
(Washington's papers include correspondence between them)."
This part I think must be mistaken - John Lewis and Samuel Given were probably located in Augusta County near where Staunton was eventually founded, which is some distance from Washington's location in Frederick.I think this must be a different John Lewis whose family had been in the country several generations already - see this link
There's a family listed here linking Magdalene Woods McDowell and Benjamin Borden:
..Making it appear that Magdalene McDowell, wife of John McDowell, later married Benjamin Borden.
So I see the links between Givins, Cathey, McDowell, Borden and Lewis, but I don't get how Keys and Adair connect, except by being in Augusta County at that time, and Roger Keys being witness to Benjamin Borden's will.
There is in Chalkley, Vol. 1 , p 16, 3/10/1745"Ephraim McDowell committed to answer Roger Keys."
Roger Keys married Sarah Adair, daughter of William Adair, whose will is in Chalkley.Roger Keys was executor.
Didn't you think William Adair came to New York in 1740 with Lachlan McDonald?And probably came from Islay?
I think we worked out that another daughter, Anna Adair, married John Wilson, and Roger Keys was again executor when John Wilson died.
No clue who Robert Adair, constable in Staunton in 1761 is.
The Benjamin Adair in "A Scattered People," who first appears near Baltimore in 1773, at last age 16, moved to Rockbridge Co., VA in 1799, and on to Highland Co., Ohio in 1805, was connected to Keys through his daughter Martha's marriage to Daniel Lyle.William Keys came to Ohio also, and there were more connections there.
Leo Z. Adair has this Benjamin Adair as a son of Cornelius Adair of Augusta County.This doesn't fit with "A Scattered People": if the Neal O'Dear who married Elizabeth Davis at the Swede's Church in Pennsylvania in 1768is the same Cornelius Adair, he wouldn't have had a son over age 16 in 1773.The first mention in Chalkley of Neal Adair is 4/28/1773 when he records a deed.
I'm afraid I've created more of a muddle.
"JAMES PATTON AND THE APPALACHIAN COLONISTS," cited in the Wilson Lewis page you linked, is at Cornell - I'll try to take a look at it.