I think this is John's widow Jane (Sargeson) in the 1851 census living at Sitwell Street, Sutton, Sculcoates, Yorkshire
Jane's birth year is given as 1791 birthplace Danby, Yorkshire.
This may be John's second wife in view of her birth year. No children listed with her.
Registration district Sculcoates
Archive reference HO107
Piece number 2360
Folio 76
Page 56