Johannes de Gier, b: 1809 - Lopik, Netherlands

^{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}

^{1770 Cook discovers New South Wales}
^{1776 America declares independence}
^{1789 Geo. Washington 1st USA president}
^{1789 French Revolution begins}
^{1798 Irish revolt against English rule}


^{Cornelis de Gier}^{b.1832 d.1908 Harmelen, Netherlands}			^{Johannes Janse de Gier}^{b. d.}

^{Jan Floren de Gier}^{b.1833 Willeskop, Netherlands d.1905 Willeskop, Netherlands}		^{Jan Floren de Gier}^{b.1777 d.1856 Jaarsveld, Netherlands}	^{Maria de Groet}^{b. d.}

^{Pieter Roelof de Gier}^{b.1835 Harmelen, Netherlands d.}	^{Johannes de Gier}^{b.1809 Lopik, Netherlands d.1868 Harmelen, Netherlands}		^{Roelof Kraijesteijn}^{b. d.}

^{Johannes de Gier}^{b.1837 Harmelen, Netherlands d.1937 Harmelen, Netherlands}		^{Maria Kraijestijn}^{b.1774 d.1852 Jaarsveld, Netherlands}	^{Cornelia Stuiver}^{b. d.}

^{Teunis de Gier}^{b.1837 Harmelen, Netherlands d.}

^{Aletta de Gier}^{b.1839 Harmelen, Netherlands d.1902 Kamerik, Netherlands}		^{Cornelis van Dijk}^{b. d.}

^de Gier^{b.1841 Harmelen, Netherlands d. Harmelen, Netherlands}	^{Janna van Dijk}^{b.1808 Lopik, Netherlands d.1890 Harmelen, Netherlands}

^{Maria de Gier}^{b.1843 Harmelen, Netherlands d.1923 Barwoutswa, Netherlands}		^{Aletta Bosch}^{b. d.}

^de Gier^{b.1845 Harmelen, Netherlands d. Harmelen, Netherlands}

^{Johannes de Gier}^{b.1846 Harmelen, Netherlands d.1906 Harmelen, Netherlands}