Jacobus Scheffer, b: 1870 - Kralingen, Holland

^{1899 Boer War begins}
^{1903 Wright brothers 1st plane flight}
^{1912 Titanic sinks on maiden voyage}
^{1914 - 1919 World War I}
^{1922 USSR formed by Soviet states}

^{1837 Queen Victoria assumes throne}
^{1854 Crimean War with Russia}
^{1869 Opening of Suez Canal}
^{1871 Franco - Prussian War}
^{1895 Marconi invents wireless telegraphy}

^{1798 Irish revolt against English rule}
^{1804 Napoleon becomes French Emporer}
^{1805 Battle of Trafalgar, Nelson killed}
^{1815 Battle of Waterloo, Napoleon defeat}
^{1830 French Revolution}


		^{Jacob Scheffer}^{b.1790 Sciedam, Holland d.1852 Rotterdam, Holland}

	^{Jan Fredrik Scheffer}^{b.1843 Rotterdam, Holland d.1904 Rotterdam, Holland}	^{Maria van Deutekon}^{b.1797 Delft, Holland d.1872 Rotterdam, Holland}

^{Jacobus Scheffer}^{b.1870 Kralingen, Holland d.1934 Rotterdam, Holland}		^{Jacobus Schipperus}^{b.1814 Rotterdam, Holland d.1905 Rotterdam, Holland}

	^{Gerardina Schipperus}^{b.1845 Rotterdam, Holland d.1916 Rotterdam, Holland}	^{Kaatje van Teerling}^{b.1819 Rotterdam, Holland d.1905 Rotterdam, Holland}

^{1899 Boer War begins}
^{1903 Wright brothers 1st plane flight}
^{1912 Titanic sinks on maiden voyage}
^{1914 - 1919 World War I}
^{1922 USSR formed by Soviet states}

^{1837 Queen Victoria assumes throne}
^{1854 Crimean War with Russia}
^{1869 Opening of Suez Canal}
^{1871 Franco - Prussian War}
^{1895 Marconi invents wireless telegraphy}

^{1798 Irish revolt against English rule}
^{1804 Napoleon becomes French Emporer}
^{1805 Battle of Trafalgar, Nelson killed}
^{1815 Battle of Waterloo, Napoleon defeat}
^{1830 French Revolution}


		^{Jacob Scheffer}^{b.1790 Sciedam, Holland d.1852 Rotterdam, Holland}

	^{Jan Fredrik Scheffer}^{b.1843 Rotterdam, Holland d.1904 Rotterdam, Holland}	^{Maria van Deutekon}^{b.1797 Delft, Holland d.1872 Rotterdam, Holland}

^{Jacob Scheffer}^{b.1868 Delft, Holland d.1957 Rotterdam, Holland}		^{Jacobus Schipperus}^{b.1814 Rotterdam, Holland d.1905 Rotterdam, Holland}

	^{Gerardina Schipperus}^{b.1845 Rotterdam, Holland d.1916 Rotterdam, Holland}	^{Kaatje van Teerling}^{b.1819 Rotterdam, Holland d.1905 Rotterdam, Holland}





^{Cornelia Maria van Kalken}^{b.1868 Rotterdam d.1943 Rotterdam}

^{1899 Boer War begins}
^{1903 Wright brothers 1st plane flight}
^{1912 Titanic sinks on maiden voyage}
^{1914 - 1919 World War I}
^{1922 USSR formed by Soviet states}

^{1837 Queen Victoria assumes throne}
^{1854 Crimean War with Russia}
^{1869 Opening of Suez Canal}
^{1871 Franco - Prussian War}
^{1895 Marconi invents wireless telegraphy}

^{1798 Irish revolt against English rule}
^{1804 Napoleon becomes French Emporer}
^{1805 Battle of Trafalgar, Nelson killed}
^{1815 Battle of Waterloo, Napoleon defeat}
^{1830 French Revolution}


		^{Jacob Scheffer}^{b.1790 Sciedam, Holland d.1852 Rotterdam, Holland}

	^{Jan Fredrik Scheffer}^{b.1843 Rotterdam, Holland d.1904 Rotterdam, Holland}	^{Maria van Deutekon}^{b.1797 Delft, Holland d.1872 Rotterdam, Holland}

^{Jacob Scheffer}^{b.1868 Delft, Holland d.1957 Rotterdam, Holland}		^{Jacobus Schipperus}^{b.1814 Rotterdam, Holland d.1905 Rotterdam, Holland}

	^{Gerardina Schipperus}^{b.1845 Rotterdam, Holland d.1916 Rotterdam, Holland}	^{Kaatje van Teerling}^{b.1819 Rotterdam, Holland d.1905 Rotterdam, Holland}

^{1964 - 1973 Vietnam War}
^{1969 Armstrong first person on moon}
^{1986 Nuclear disaster at Chernobyl}
^{1989 Berlin wall falls}
^{1991 Persian Gulf War}

^{1914 - 1919 World War I}
^{1922 USSR formed by Soviet states}
^{1939 - 1945 World War II}
^{1945 Atomic bomb detonated (Hiroshima)}
^{1950 Korean War begins}

^{1871 Franco - Prussian War}
^{1895 Marconi invents wireless telegraphy}
^{1899 Boer War begins}
^{1903 Wright brothers 1st plane flight}
^{1912 Titanic sinks on maiden voyage}








	^{Jacobus Alexander Stokker}^{b.1874 Rotterdam, Holland d.1940 Rotterdam, Holland}

^{1950 Korean War begins}
^{1964 - 1973 Vietnam War}
^{1969 Armstrong first person on moon}
^{1986 Nuclear disaster at Chernobyl}
^{1989 Berlin wall falls}

^{1912 Titanic sinks on maiden voyage}
^{1914 - 1919 World War I}
^{1922 USSR formed by Soviet states}
^{1939 - 1945 World War II}
^{1945 Atomic bomb detonated (Hiroshima)}

^{1869 Opening of Suez Canal}
^{1871 Franco - Prussian War}
^{1895 Marconi invents wireless telegraphy}
^{1899 Boer War begins}
^{1903 Wright brothers 1st plane flight}








	^{Jannetje van Wijk}^{b.1865 Rotterdam d.1945 Rotterdam}