William Buck Estes wed (2) Sarah Moore [interlined: "Sallie" (Martha J.)] Children: ... Francis Marion Estes (Bulse)
It is unclear what "Bulse" signifies. It could be the maiden name of his wife? But this website suggests he married Sally Cox, and an "F. M. Estis" of approximately the correct age is shown married to a "Katherine C." in the 1870 census of Fredericksville, Albemarle.