There is a book that documents the Davis family in Virginia and their descent from POWHATAN. This is the family that gave us JEFFERSON DAVIS, President of the Confederacy. The whole book can be read online free at archive.org. Type N.J. Floyd into the search bar.Arrow down to Biographical Genealogies of the Virginia-Kentucky Floyd Families. Click on title then on leftside choose your reading format. An extract of the book can be read online at hamiltoncounty.il.com/carlisle There are several Nathaniels , father, son and cousin. Robert and James are named.