More re: Ephraim McDowell

From Historic Families of Kentucky, by Thomas Marshall Green, pub. 1889, R. Clarke:

Ephraim McDowell, who fought at Boyne river, as well as at Londonderry, was already an elderly man, when, with his two sons, John and James, his daughters, Mary and Margaret, and numerous kinsmen and co-religionists, he emigrated to America to build for himself and his a new home. In his interesting "Sketches of Virginia," [William] Foote states that he was accompanied to Virginia by his wife, and that his son John was a widower when he left Ireland; but, as in the deposition of Mrs. Mary E. Greenlee, the daughter of Ephraim, her father, her brother John, her husband, and herself, are designated as composing the party emigrating to Virginia from Pennsylvania, and no mention is anywhere made of her mother, Mr. Foote is probably in error; and the uniform tradition of the family is more likely to be correct—that the wife of Ephraim McDowell died in Ireland, and that John McDowell had never been married until he came to America. The exact date of his arrival in Pennsylvania is not known. The journal of Charles Clinton—the founder of the historic family of that name in New York—gives an account of his voyage from the county of Longford, in the good ship "George and Ann," in company with the "John of Dublin," having many McDowells aboard as his fellow passengers. The "George and Ann" set sail on the 9th of May, 1729. On the 8th of June, a child of James McDowell died, and was thrown overboard; several other children of the same afterward died; also a John McDowell, and the sister, brother and wife of Andrew McDowell. The ship reached land, on the coast of Pennsylvania, on the 4th day of September, 1729. Whether or not the conjecture that Ephraim McDowell was a passenger with his kindred on board this ship at that time is correct, it is certain that about the same time he and his family, and numerous other McDowells, Irvines, Campbells, McElroys, and Mitchells, came over together, and settled in the same Pennsylvania county.
In Pennsylvania, Ephraim McDowell remained several years. There his son, John, was married to Magdalena Wood, whose mother was a Campbell, and, as tradition has it, of the noble family of Argyle. There Samuel, the eldest son of John and Magdalena McDowell, was born, in 1735. There, too, probably, Mary, the daughter of Ephraim, met, was beloved by, and married James Greenlee, a Presbyterian Irishman, of English descent, and said to have been remotely descended from the Argyle Campbells.