I see some family trees have Benjamin M. Hunt's parents as James M. Hunt & Elizabeth D. Hunt. But as I read the census I don't see how that can be because on the 1880 census it says Benjamin is the grandson of James.
1860 Census Fluvanna, VA: James Hunt 50
Elizabeth Hunt 40
Benjamin Hunt 6/12
1870 Census Albemarle, VA: James Hunt 60
Elizabeth Hunt 50
Benjamin Hunt 10
1880 Census Albemarle, VA: James Hunt 70
Elizabeth Hunt 60
Benjamin Hunt 18