Hi, POSSIBLE but this is why you need marriage cert. of Jane.
1881 census for Langharne Carmarthenshire
Piece 5395 Fol 60 Page 15
Benjamin Evans 30 can;t read occ.or place of birth in Carmarthenshire Martha 25 born Carmarthen Carmarthenshire Myrah 9 born Langharne William 7 born Langharne Stephen 5 born Langharne Jane 2 born Langharne