Johann Freidrich Ketterling, b: 1834

^{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}




			^{Johann Freidrich Ketterling}^{b.1834 Cassel, Russia d.}

	^{Gottlieb Ketterling}^{b.1866 Kassel, Odessa, Russia d.}

	^{Jacob Ketterling}^{b.1869 Chutor, Russia d.}



			^{Katharina Heupel}^{b.1843 Kassel, Odessa, Russia d.}