| Generation 1 - Jacob Pieter Spierenberg: Born - 31 Jan 1890 - Rotterdam, Holland |
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| Generation 1 - Jacob Pieter Spierenberg: Died - 10 Sep 1969 - Rotterdam, Holland |
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| Generation 1 - Jacob Pieter Spierenberg & Louisa Christine Henriėtte Oudsteijn: Married - 18 Jun 1914 - Rotterdam, Zuid Holland, Netherlands |
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| Generation 2 - Pieter Spierenberg: Born - 16 May 1865 - Rotterdam, Holland |
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| Generation 2 - Pieter Spierenberg: Died - 1 Nov 1927 - Rotterdam, Holland |
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| Generation 2 - Pieter Spierenberg & Petronella Leonarda Akkersdijk: Married - 9 May 1889 - Rotterdam, Holland |
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| Generation 2 - Petronella Leonarda Akkersdijk: Born - 23 May 1865 - Rotterdam, Holland |
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