Has Samuel Boler been listed twice on 1871 census  

Samuel Boler Age 18
Relation   
Apprentice (wheelwright)Where born   Mansfield, Nottinghamshire
Civil parish   Blidworth Nottinghamshire
Piece   3475 Folio   8 Page number   9
Saml Boler Age   18
Relation   
Son occ 
wheelwrightWhere born   Mansfield, Nottinghamshire
Civil parish   Mansfield Ecclesiastical parish   St Peter
Piece   3472 Folio   33 Page number   38
1873 marriage to Mary Burn, Samuel Boler’s occ
joiner abode Church Road Eccles
Is this Samuel on 1881 census? Maritial status I think reads unmarr?  

Samuel Boales Age   28
Relationship to Head   Lodger
Where born   Mansfield, Nottinghamshire
Civil parish   
Leicester St MargaretStreet Address   25 Gladstone St
Occupation   
CarpenterPiece   3165 Folio   21 Page number   36
The 1852 Samuel is in Leicester in 1891; he says he's married, but there's no wife to be seen on the census. Is this your man?
1891 could be correct or a coincidence.
Samuel Boler Age 40 occ 
wheelwrightRelationship   Head
Birth Place   Mansfield, Nottinghamshire
Civil parish   
St Margaret Leicester1891 Piece   2535 Folio   16