Guðmundur Jónasson, b: 1909 - Glaumbæjarsókn, Iceland

^{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}


			^{Magnús Árnason}^{b.1829 Silfrastaðasókn, Iceland d.1916}

		^{Jónas Magnússon}^{b.1861 Rípur, Skagafjarðarsýsla d.1919}	^{Sigurbjörg Guðmundsdóttir}^{b.1831 Reynistaðarsókn, Iceland d.1919}

	^{Guðmundur Jónasson}^{b.1909 Glaumbæjarsókn, Iceland d.1972}

^{S Guðmundsdóttir}^{b. d.}		^{Jónína Guðmundsdóttir}^{b.1876 Hvam, Skagafjarðarsýsla d.1957}

^{J Guðmundsdóttir}^{b. d.}

^{A Guðmundsson}^{b. d.}

	^{Þórunn Jónsdóttir}^b.1908 d.