I have done some more searching of my records and have found your James. He was the son of Robert McDill (born March 13, 1767 and died August 18, 1850 in Ross County.He is buried in the McDill Cemetery) and Mary ?? (born April 27, 1770 and who died August 18, 1850 in Ross County)
Robert McDill was the son of James McDill (born 1740 Lancaster County, Pa. and died Sept. 12, 1801 in Ross County, Ohio) and Jane Creswell (1752-October 10, 1815).They were married Jan. 30, 1766.
James McDill was the son of James McDill (c. 1713 Pa. and died May 1795 in Lancaster County, Pa.) and Mary Bailey (Jan. 13, 1728 - Feb. 25, 1808 Washington County, Md.)
James McDill was the son of Jacob McDill (b. c. 1691 and died Nov. 1, 1771 in Lancaster County, Pa.)