Send $1 and a SASE to :
Clerk of the Circuit Court
Franklin County Courthouse
275 South Main Street
Rocky Mount, Va 24151 and request the marriage certificate of Samuel Campbell and Ann Sink married on Oct.6, 1845. It USUALLY contains the names of the parents.
It is pretty cheap and they are pretty fast, about 3 weeks. I do it all the time and good luck!
Shelley