Family: John Anthony Sivell / Winifred Marion Nielsen (F1930)
Alfred Ernest Sivell ( -1972) |
Gwendoline Victoria Gissing ( -1987) |
 | Otto Jens Nielsen (1902-1937) 
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 | Olive Clay (1908-1965)
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| John Anthony Sivell (1932- )
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| Winifred Marion Nielsen (1937- )
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| Neil John Sivell (1961- ) |
Robyn Lee Sivell (1963- )  |