Gérardine Henriette Marguerite van Hardenbroek 1896–1979 Adriaan Christiaan van Heerdt 1886–1957 | | |
| | Ernest Louis van Hardenbroek 1864– Johanna Maria Antonia Caan 1868–1939 | | | | Ernest Louis van Hardenbroek 1829–1877 Sophia Adriana Joanna Huydecoper 1832–1904 |
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