Hugh & Sarah FOX, Frederick County, Virginia

Searching for any information on Hugh & Sarah FOX who verified the actual birth dates of the orphans of Moses HENRY, whose death, according to Frederick County, Virginia court records occurred in 1751.
Hugh was married to Sarah UNKNOWN and I believe there has to be a close connection to the family of Moses HENRY for Hugh to know the exact birth dates.
My interest is Aaron HENRY, son of Moses, who was born 1 OCT 1744.

Judy