John Thomas Griffiths (Q20733675)

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peiriannydd mwnawl (1824-1895)
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Language Label Description Also known as
Cymraeg
John Thomas Griffiths
peiriannydd mwnawl (1824-1895)
    Saesneg
    John Thomas Griffiths
    Welsh mining engineer in the U.S.A. (1824-1895)

      Mynegiadau

      Identifiers

       
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