Ann Harbison Shaw Silvertooth is not the daughter of James Harbison and Rachel Porter. The book, "Marriage bonds and consents, 1786-1810, Mercer County, Kentucky" found on FamilySearch.org names the father of Ann Harbison who married William Shaw.
Shaw, William and Ann Harbison, February 2, 1796
Bondsman: James Harbison certifies his sister, Ann, . is 21 years Old.
Bride's father: Reed Harbison
https://www.ancestry.com/boards/surnames.porter/3844.2.2.1/mb.ashx