I am just saying that, if you look at the original page from the 1881 census, in the same house is a Mawby family, and then John Thomas an Sarah.
Then there's this from 1871:
Reference RG10, Piece 1480, Folio 78, Page 23
6 Riding, Northampton St Giles
Mawby, William  Head  M  Cabinet Maker  b Newport Pagnell, Bucks
Mawby, Harriett  Wife  F  39  Upholsterer  b same
Mawby, Jane  Daughter  F  <something> Factory  b same
Mawby, James  Son  M  13  French Polisher  b same
Mawby, Harriett E  Daughter  F  12  b same
Mawby, John T  Son  M  9  Scholar  b Northampton St Sepulchre
Mawby, Louisa  Daughter  F  7  Scholar  b Newport Pagnell
Mawby, William  Son  M  3  b Northampton, All Saints
Mawby, Amy  Daughter  F  1  b Northampton St Giles