| 1922 USSR formed by Soviet states 1939 - 1945 World War II 1945 Atomic bomb detonated (Hiroshima) 1950 Korean War begins 1964 - 1973 Vietnam War  | 1895 Marconi invents wireless telegraphy 1899 Boer War begins 1903 Wright brothers 1st plane flight 1912 Titanic sinks on maiden voyage 1914 - 1918 World War I  | 1830 French Revolution 1837 Queen Victoria assumes throne 1854 Crimean War with Russia 1869 Opening of Suez Canal 1871 Franco - Prussian War  | 
|  Abraham Nicolaas Jansen b.1910 Reeuwijk, Netherlands d.  |  Pieter Klaas Jansen b.1887 Reeuwijk, Netherlands d.  | |||||||
|  Elisabeth Jansen b.1912 Reeuwijk, Netherlands d.  | ||||||||
|  Aantje Jansen b.1913 Reeuwijk, Netherlands d.  | ![]()  | |||||||
|  Jan Jansen b.1915 Reeuwijk, Netherlands d.  | ![]()  |  Jan van Dulken b.1860 Reeuwijk, Netherlands d.1915 Reeuwijk, Netherlands  | ||||||
|  Gerrit Klaas Jansen b.1918 Reeuwijk, Netherlands d.  |  Trijntje van Dulken b.1888 Reeuwijk, Netherlands d.  | ![]()  |  Jacob Plak b.1834 Zwammerda, Netherlands d.1898 Reeuwijk, Netherlands  | |||||
|  Trijntje Cornelia Jansen b.1920 Reeuwijk, Netherlands d.  | ![]()  |  Elisabeth Plak b.1861 Reeuwijk, Netherlands d.  |  Trijntje van Vliet b.1838 Reeuwijk, Netherlands d.1900 Reeuwijk, Netherlands  | |||||
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