Grandfather Main's mother was Surrelda C. Hunt. Surrelda's mother was Nancy Jane Hunt, a daughter of Sarah Denton and William Basil Hunt. Nancy Jane was already a Hunt before she married Hiram Hunt, reportedly a (second?) cousin of hers. Hiram's ancestry is a mystery and he is not doucmented. I'm not sure of the William Basil Hunt line information and it represents a best guess, at the moment.

The Denton Family Genealogy pages at http://dentongenealogy.org/ are a labor of love and a "must see" for any Denton  descendant.