John Provis (1796/7–79)
Civil engineer. Lived in Holyhead, Anglesey, north Wales.
Census returns of England and Wales 1841 (The National Archives: Public Record Office HO107/1364/3/37/31), 1851 (HO107/2522/400/2)
England & Wales, national probate calendar (index of wills and administrations), 1858–1995 (Ancestry.com, accessed 20 July 2022)
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