Hi Stuart
Here is Mary Jane Knox inthe 1891 census living at 20 Lamb Hill, Wortley, Leeds. John her father is a Boiler Maker
Knox, Ada abt 1883 Stockton, Durham, England Daughter Armley Yorkshire
Knox, Esther abt 1848 Wolviston, Durham, England Wife Armley Yorkshire
Knox, Hannah abt 1889 Stockton, Durham, England Daughter Armley Yorkshire
Knox, John abt 1847 Newcastle, Durham, England Head Armley Yorkshire
Knox, Mary J abt 1880 Stockton, Durham, England Daughter Armley Yorkshire
having her parents names I did a search on the 1881 and found them at 23 Bath St, Stockton On Tees, Durham, England
Esther Knot abt 1849 Wolverstone, Durham, England Wife
John Knot abt 1848 Ncastle, Northumberland, England Head
John Knot abt 1875 Stockton, Durham, England Son
Mary J. Knot abt 1880 Stockton, Durham, England Daughter
N*****k Knot abt 1877 Stockton, Durham, England Son
Robert Knot abt 1866 Stockton, Durham, England Son
Wendy
Will have a look for Tom