I believe the attached marriage bond is your Reuben Roach and Sarah Ball 1806 marriage Monroe County, VA/WV.
You are using Amherst County which I don't understand; I see Amherst a lot but I have no idea where this information comes from.
This Reuben Roach and Mickelberry Roach are the same family that lived in Rockingham, Orange, Augusta, Albermarle and likely adjoining counties.
It is also likely Tempy Ball who married Fielding Meadows (s/o Francis, Jr and Frances Bush) in Monroe County, VA/WV is related to Sarah Ball. The best information I could come up with Tempy was d/o Joseph and Elizabeth Philips Ball.