Any information on Robert Butler married Mary Ann Shelton Knox County TN 1854.
He might be the Robert Butler listed under Milly Butler's household she was 52 from NC.Robert is listed born in VA.

Knox County TN 1850 census:
1452-1461
Milly Butler 52 NC
Robert 21 VA
Allen 17 TN
William 16 TN
Emily A. 22 NC
Joel 12 TN
William ? 3 TN
1453-1462
Sampson Butler 32 NC
Mary A. 19TN
Loy A. 3 TN
William 2 TN
Elizabeth J. 6/12 TN