Veronica and sephronia are the same person.
I use familysearch.org a lot, and I think that's where I found this.
George Dixson-born: feb 17, 1754 Augusta county, VA
Married: Veronica Sephronia Van Bibber, daughter of Peter Van bibber and Margary Bounds.
Children of George and Veronica: Peter, born 1775 in WV. , Eunice, Jesse,Henry, and Olive, who married Jack Stoner or Stover.