"James Patton and the Appalachian Colonists" didn't have anything about Keyses or Adairs, but did add interesting information about John McDowell's death.He had been given a commission in 1742 to form a militia to protect the settlers on the Borden grant ."McDowell had been hired by Borden to make 'a pack-horse way' to the Borden grant and was Borden's agent for locating settlers on the grant.The settlers regarded him warmly and also petitioned that he be made a justice of the peace, saying that John McDowell 'was verri Good and usfull to ye poore & Loved to opres all vise.'"He was killed in the first battle in western Virginia between settlers and Indians - the battle of Balcony Falls.At least differing three versions of the battle have survived - from James McDowell, John's brother, fromJames Patton, and from an Indian.John McDowell's widow Magdalen married Benjamin Borden's son Benjamin.
Other interesting details:"Lancaster, Pa., was a seedbed for the settlements in the Shenandoah Valley supplying the Alexanders, Allens, Anderson, Bells, Caldwells, Curry's, CRAWFORDS, Franciscos, McCues and Pattersons."
The Donegal Presbytery, in Lancaster, Pa., was in communication with the settlers, and records of this can be found in the "Donegal Presbytery Minutes, 1732-1790" found on microfilm at Union Theological Seminary, Richmond, Virginia.Might be a good source to check for Adairs and Crawfords.