This would be the Harter "clan" that first appeared in Rockingham County, Virginia 1790 census. So far as I know they are not related to any of the other US Harter clans. I don't know too much about them, but I do happen to have some information on Henry (1757 - 12 Oct 1831)and Catharine (? - 3 Mar 1842). Three sons are found in the Miami County, Ohio records.
Benjamin Harter (1790-1863)m. Mary Rawser (1791-1896)
Jacob Dove Harter (19 Apr 1792 - 29 Sept 1874)m. Elizabeth Smizer (20 Jan 1792 - 12 Mar 1871)
William Harter m Elizabeth Cannady
Since I have not researched this Harter line I cannot vouch for this information.