Dear Leo,
He did. A nice several generation pedigree can be reconstructed from the following items:
1) "We hear that on Friday was 7-night, Mr. Francis Kinloch, only son of the Hon. James Kinloch, Esq., was married to Miss Nancy Cleland, the only child of the Hon. John Cleland, Esq., a young lady of fine accomplishments with a large fortune. Monday, February 18, 1751 (A. S. Salley, Jr., _Marriage Notices in The South-Carolina Gazette and its Successors (1732-1801)_ (Albany, N.Y., 1902), p. 14).
2) Will of Francis Kinloch of the Province of South Carolina, made 2 January 1763. Names beloved wife Ann; daughter Mary Esther (under 21); Eldest sons Francis and Cleland; Son James (under 21); cousin David Kinloch of Gilmerton in Scotland and his children; nephew Charles Crokatt of London, merchant, and his children. Witnesses: Benjamin Young, William Shackleford, John Stewart. Proved 13 November 1767 (Charleston, South Carolina Will Book 11 [1767-1771], pp. 227-237).
There's a good account of this family by H. D. Bull, "Kinloch of South Carolina", _South Carolina Historical and Genealogical Magazine_ 46 (1945): 63-69. According to Bull, the younger Francis, Cleland, and Mary Esther (who married Benjamin Huger), all left descendants in America.
For the record -- thinking back to the general questioning of American royal descents here a few days ago -- the link between James Kinloch and his Scottish ancestors would seem (per Bull) to derive not only from Francis' will, but also from a 1747 entail of the Gilmerton estate, so is apparently about as water-tight as these things can be.
All the best,
Kelsey