I don't have a complete family tree for all the Bevills'. Here is what I found in Va.
Sarah Bevill married a Josepha Allen. This is how they had His name in the vital records. He could have been Joseph A. Allen? Their date was Sept. 1801.
Joseph Allen md. Mary A.F.Bevill aug. 1825.
John Allen md. Nancy Hill Bevill aug. 1825
Robert Coleman md. Nancy Bevill Dec. 1825.
I will be back on line tonight if you have any questions. Yes I would like to keep in contact. I am going to be away for about a week so don't give up if you don't hear from me till then.