 | 1830 French Revolution 1837 Queen Victoria assumes throne 1854 Crimean War with Russia 1869 Opening of Suez Canal 1871 Franco - Prussian War | 1789 French Revolution begins 1798 Irish revolt against English rule 1804 Napoleon becomes French Emperor 1805 Battle of Trafalgar, Nelson killed 1815 Battle of Waterloo, Napoleon defeat | 1740 War of Austrian Succession begins 1762 Catherine II becomes Czarina/Russia 1770 Cook discovers New South Wales 1776 America declares independence 1789 Geo. Washington 1st USA president |
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 | Cornelis de Gier b.1832 Lopik, Netherlands d.1908 Harmelen, Netherlands |  | |  |  | Johannes Jansz de Gier c.1746 Jaarsveld, Netherlands d. |  | |
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| Jan Floren de Gier b.1833 Lopik, Netherlands d.1905 Willeskop, Netherlands |  | | Jan Flore de Gier b.1776 Jaarsveld, Netherlands d.1856 Jaarsveld, Netherlands | | Maria Magtelena de Groet c.1747 Bonrepas, Netherlands d.1812 Lopik, Netherlands | | |
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| Pieter Roelof de Gier b.1835 Harmelen, Netherlands d. |  | Johannes de Gier b.1809 Jaarsveld, Netherlands d.1868 Harmelen, Netherlands | | | Roelof Pieterz Kraijesteijn b.1742 Lopik, Netherlands d.1832 Jaarsveld, Netherlands | | |
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| Johannes de Gier b.1837 Harmelen, Netherlands d.1937 Harmelen, Netherlands | |  | Maria Roelofs Kraayesteyn b.1773 Jaarsveld, Netherlands d.1852 Jaarsveld, Netherlands | | Cornelia Willemsdr Stuyver b.1749 Polsbroek, Netherlands d.1826 Jaarsveld, Netherlands | | |
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| Teunis de Gier b.1837 Harmelen, Netherlands d.1867 Wilnis, Netherlands | | | | | Cornelis Jan Joostenzn van Dijk b.1724 IJsselstein, Netherlands d. | | |
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| Aletta de Gier b.1839 Harmelen, Netherlands d.1902 Kamerik, Netherlands | | | Cornelis van Dijk b.1770 Lopik, Netherlands d.1801 IJsselstein, Netherlands | | Grietje Bosch b.1738 IJsselstein, Netherlands d. | | |
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| de Gier b.1841 Harmelen, Netherlands d. Harmelen, Netherlands | | Janna van Dijk b.1808 Lopik, Netherlands d.1890 Harmelen, Netherlands | | | Jan Janse Bos b.1746 IJsselstein, Netherlands d.1801 IJsselstein, Netherlands | | |
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| Maria de Gier b.1843 Harmelen, Netherlands d.1923 Barwoutswa, Netherlands | | | Aletta Bosch b.1784 IJsselstein, Netherlands d.1817 Lopik, Netherlands | | Maagje Oskam b.1760 Lopik, Netherlands d. | | |
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| de Gier b.1845 Harmelen, Netherlands d. Harmelen, Netherlands | |  | |||||
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 | Johannes de Gier b.1846 Harmelen, Netherlands d.1906 Harmelen, Netherlands |  | ||||||