My wife's father is Isaac Bynaker from Harrisburg Virginia, but I don't know if its the one you are looking for. My wife is one of six childern from his marriage to Mary Anne Kersey who passed about 1960. The three daughters live in the DC metro area, two sons live in Florida and one son died about 10 years ago in an accident.
Issac remarried sometime later and had two more childern from the second marriage. He passed about 1961 and is buried in Culpepper Virgina.