NOTES: See "Doubts About the Finley Line." My brother Josh points out there is no substantial evidence disputing the Finley family's own recognition of James McGrew as the husband of Mary Finley (i.e., it is not the conventional situation of the less established line claiming a dubious but convenient kinship), so this site will resolve the issue that way unless and until more solid evidence calls that into question.
From Josh's notes:
Just as John Finley was a pioneer to America, so was his father Robert Finley a pioneer to Ireland. Robert Finley was baptized May 4, 1634 at Inchervie, Fife, Scotland. He apparently made a lot of money in Scotland and left (in his forties) to farm and marry in Ireland. Robert Finley's wife was Margaret (Mary) Lauder of Kellyreiadin, County Armagh. Her father was Julian Lauder. They married in 1680, and Robert died June 16,1712 in County Armagh. Robert left Scotland for Ireland in 1678: ("Sold his possessions in Scotland to his cousin Thomas Finley and in 1678 moved to Ireland, first settling in Hamiltonbaun County Armagh; married 1680 Margaret Lauder, daughter of Julian Lauder of Kellyreiadin, County Armagh" - The Clan Finley, p. 26). His will was probated July 20, 1712 - I suggest you double-check my work with The Clan Finley document, which is awkwardly written and has at least one mistake, but is generally well-authenticated. Robert Finley's father was John Finley, who married Sarah Craigie. (At the top of page 26 you will see Robert Finley as the spouse of Sarah Craigie, but that is a typo, since he lists John in two other places).