Hi David, I can see the concern of how do you know the maiden name of Ann, as the marriage of a William Griffin to an Ann Laxton/Loxton was by Banns last being read 18th Dec 1826 St Mary, Hornsey Rise, but their are other marriages of Ann's to a William Griffin in London that could also be her?
There is an 1841 census with a Mary Ann aged 12, an Emma aged 8 and an Eliza aged 6, but with a James aged 14, parents William and Ann in Isleworth Middx.
Census Ref HO107/658/ 8/29/ 18
Was William a Policeman?
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