 | 1903 Wright brothers 1st plane flight 1912 Titanic sinks on maiden voyage 1914 - 1918 World War I 1922 USSR formed by Soviet states 1939 - 1945 World War II | 1854 Crimean War with Russia 1869 Opening of Suez Canal 1871 Franco - Prussian War 1895 Marconi invents wireless telegraphy 1899 Boer War begins | 1804 Napoleon becomes French Emperor 1805 Battle of Trafalgar, Nelson killed 1815 Battle of Waterloo, Napoleon defeat 1830 French Revolution 1837 Queen Victoria assumes throne |
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 | Margaretha de Gier b.1917 Maartensdijk, Netherlands d.2003 Utrecht, Netherlands |  | |  |  | Johannes de Gier b.1809 Jaarsveld, Netherlands d.1868 Harmelen, Netherlands |  | |
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| Arisje de Gier b.1919 Maartensdijk, Netherlands d.2003 Alkemade-Oude Weterin |  | | Johannes de Gier b.1846 Harmelen, Netherlands d.1906 Harmelen, Netherlands | | Janna van Dijk b.1808 Lopik, Netherlands d.1890 Harmelen, Netherlands | | |
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| Johanna de Gier b.1921 Vleuten, Netherlands d.2013 De Meern, Netherlands |  | Anthonius Frederik de Gier b.1887 Harmelen, Netherlands d.1983 Utrecht, Netherlands | | | Gerrit van Beusekom b.1821 Jutphaas, Netherlands d.1894 IJsselstein, Netherlands | | |
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| de Gier b.1923 Vleuten, Netherlands d. Vleuten, Netherlands | |  | Margaretha van Beusekom b.1853 Willeskop, Netherlands d.1927 Haastrecht, Netherlands | | Margaretha Kool b.1821 Hagestein, Netherlands d.1859 Willeskop, Netherlands | | |
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| Jacoba Reijertje de Gier b.1924 Vleuten, Netherlands d.2014 | | | | | Jan Oomsen b.1814 Maartensdijk, Netherlands d.1881 Maartensdijk, Netherlands | | |
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| Johannes de Gier b.1926 Vleuten, Netherlands d.2018 | | | Jacob Oomse b.1859 Hilversum, Netherlands d.1926 Maartensdijk, Netherlands | | Maria Willemse Profeet b.1823 Barneveld, Netherlands d.1906 Maartensdijk, Netherlands | | |
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| Maria de Gier b.1927 Vleuten, Netherlands d.1980 Nunspeet, Netherlands | | Jacoba Oomse b.1891 Maartensdijk, Netherlands d.1963 Alkemade-Oude Weterin | | | Renger Jansen van 't Land b.1813 Nijkerk, Netherlands d.1891 Nijkerk, Netherlands | | |
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| Antonius Frederik de Gier b.1929 Vleuten, Netherlands d.2004 De Meern, Netherlands | | | Arisje van 't Land b.1857 Nijkerk, Netherlands d.1912 Maartensdijk, Netherlands | | Jacobje van de Ridder b.1820 Putten, Netherlands d.1910 Nijkerk, Netherlands | | |
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| Gerrit de Gier b.1930 Vleuten, Netherlands d.1973 Utrecht, Netherlands | |  | |||||
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| de Gier b.1932 Vleuten, Netherlands d. Vleuten, Netherlands |  | ||||||