John William son of John Mean of Dock, carpenter, and Mary (baptismal record)
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In 1841 John Mayne, aged 27, not born in the county, blacksmith, was with his parents in Christ Church, Southwark, Surrey. Nextdoor was the family of his sister Cordelia Rickarby.
In 1851 John Mayne, aged 37, born in St. Austell Cornwall*, unmarried, journeyman blacksmith, was with his parents at 48 Great Suffolk Street, St. George the Martyr, Southwark, Surrey.
* The census taker has entered the same birthplace for all family members, whereas Mary's husband, John, was the only family member born in St. Austell.
In 1857 John Mayne became a residuary legatee of his father's will.
In 1861 John W Mayne, aged 46, born in Devonport Devon, unmarried, smith, was lodging in eatery house, Poplar, Middlesex.
In 1871 a John Mayne, aged 58, birthplace not known, unmarried, blacksmith, was an inmate in Leytonstone Union Workshouse, West Ham, London.