I think this Isaac is confused with another of same family line---
see
North America, Family Histories, 1500-2000
B
Bledsoe
Historic Sumner County, Tennessee : with genealogies of the Bledsoe, Cage and Douglass families and ...
https://www.ancestry.com/sharing/11449723?mark=7b22746f6b656e223a22...
I'm looking to solidify more of the family descended from George George Bledsoe but they have not been worked out yet on Geni