J Guðmundsdóttir, b: -

^{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 - 1918 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}




	^{S Matthíasson}^{b. d.}

^{G Sveinbjörnsson}^{b. d.}

^{M Sveinbjörnsson}^{b. d.}			^{Jónas Magnússon}^{b.1861 Rípur, Skagafjarðarsýsla d.1919}

		^{Guðmundur Jónasson}^{b.1909 Glaum, Skagafjarðarsýsla d.1972}	^{Jónína Guðmundsdóttir}^{b.1876 Hvam, Skagafjarðarsýsla d.1957}

	^{J Guðmundsdóttir}^{b. d.}

		^{Þórunn Jónsdóttir}^b.1908 d.