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