Could this be Martha .. ?
1851 census:
HO107/2345, Folio 107, Page: 5
Yorkshire, Brampton Bierlow
Hoober
Martha Salkeld, h. wid, 80 Annuitant, Yorks, Coleylane
John, son, 43, Book Keeper, b. Yorks, Street
Mary, dau, mar, 40, b. Yorks, Cortworth
John grandson, unm, 15, Errand Boy, b. Yorks, Hoober
Elizabeth grandau, 10, Scholar, b. Yorks, Hoober
Kind regards.