I'm not sure

If we put all the available census returns together, Frances/Fanny is always born 1818/1819 Sheerness
1901 Breach Lane, Lower Halstow
Fanny HUBBARD head wid 82 b.
SheernessJohn brother mar 78 gen farm lab b.Newington
Charlie WORREN lodger unm 38 gen brickfield lab b.Deptford
Mary BOSWELL lodger unm 38 laundry worker b.Portsmouth Hants
RG13/807 folio 80 page 21
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1891
Hubbard's Cottages, Lower Halstow
Richard HUBBARD head mar 77 retired lab b.Newington
Fanny wife 72 b.
SheernessRG12/716 folio 80 page 13
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1881
2 Mount Pleasant, Breach Lane, Lower Halstow
Richard HUBBARD head mar 66 gen lab b.Newington
Frances wife 62 b.
SheernessGeorge OTTEWELL nephew 9 b.Queenborough
RG11/972 folio 84 page 2
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1871
4 Hubbard's Cottages, Lower Halstow
Richard HUBBARD head mar 57 lab b.Newington
Fanny wife 52 b.
SheernessRG10/981 folio 87 page 7
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1861
"Earl of Liverpool" vessel in Aylesford
Richard HUBBARD 46 captain b.Newington
Frances wife 43 b.
SheernessGeorge READER unm 21 mate b.Purfleet
RG9/484 folio 70
Casalguidi