The only Mary JACKSON (retired Tanner 1851 Census) of Gowthorpe, Selby, I know about, was born GRANTHAM, Lincolnshire about 1786.
1861 Selby Census
Sarah Hood, Widow, aged 41, Tanner, Born Selby. [John Hood's widow, nee Richardson]
Mary Jackson, Widow, aged 75, Born Grantham, Lincs.
Mary Jackson, Dau'r Born Ackworth, Yorks.
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One of my Hoods of Selby, Sarah HOOD, Tanner, age 41, Widow, born Selby, was living adjacent to Mary Jackson and her Daughter, Mary Jackson in 1861.
Mark
Ignore. This is a later Mary Jackson.