Margaretha Anna Katharina Lemker, b: 1836

^{1869 Transcontinental Railroad complete}
^{1879 Edison invents phono/light bulb}
^{1898 Spanish-American War}
^{1903 Wright brothers 1st plane flight}
^{1908 Ford produces Model T}

^{1805 Lewis and Clark reach Pacific}
^{1812 - 1814 War of 1812 with Britain}
^{1846 War w/Mexico,Calif & NM acquired}
^{1861 - 1865 Civil War, North vs. South}
^{1867 Alaska Territory purchased}

^{1773 Boston Tea Party tax rebellion}
^{1775 - 1783 Revolutionary War}
^{1776 Declaration of Independence}
^{1789 George Washington first president}
^{1803 Louisiana Territory Purchased}


^{Johann Friederich Anton Jansen}^{b.1856 Waupeton, Iowa USA d.1906 Lismore, Minnesota}

^{Johann Gerhard Jansen}^{b.1859 JO DAVIE, ILLINOIS.USA d.1912 KALAMAZ, IOWA.USA}

^{Johann Friederich Heinrich Jansen}^{b.1861 JO DAVIE, ILLINOIS.USA d.1945 MARSHALL, IOWA.USA}	^{Johann Friederich Jansen}^{b.1826 Heiden, Germany d.1880 Jamestown To, Wisconsin}

^{Maria Katharina Adeleit Jansen}^{b.1864 GRANT COUNTY, TOWNSHIP WISCONSIN d.1914 IMMACULATE CONCEP}

^{Anna Katharina Jansen}^{b.1866 GRANT COUNTY, TOWNSHIP WISCONSIN d.1945 ST.C, MINNESOTA.USA}			^{Johann Bernhard Lemker}^{b.1786 SALZBERGE, GERMANY d.1887 SALZBERGE, GERMANY}

^{Martha Jansen}^{b.1869 GRANT CO, WISCONSIN d.1955 MARSHALL, IOWA.USA}		^{Johann Bernard Jr. Lemker}^{b.1809 SALZBERGE, GERMANY d.1887 MARSHALL, IOWA.USA}	^{Anna Gesine Niemeyer}^{b.1777 Bexten, Germany d. PROBABLY, GERMANY}

^{Johann Bernard Jansen}^{b.1871 GRANT CO, WISCONSIN d.1947 MARSHALL, IOWA.USA}	^{Margaretha Anna Lemker}^{b.1836 Salzbergen, Germany d.1907 Haverhill, Iowa}		^{Bernhard Herman Vehren}^b.1768 d.

^{Anna Margaretha Jansen}^{b.1874 GRANT CO, WISCONSIN d.1914 MARSHALL, IOWA.USA}		^{Maria Katharina Vehren}^{b.1799 SALZBERGE, GERMANY d.1870 MARSHALL, IOWA.USA}	^{Anna Grete Veltel}^b.1768 d.

^{Rosa Mathilda Jansen}^{b.1880 GRANT CO, WISCONSIN d.1898 MARSHALL, IOWA.USA}