K S Árnadóttir, b: -

^{1945 Atomic bomb detonated (Hiroshima)}
^{1950 Korean War begins}
^{1964 - 1973 Vietnam War}
^{1969 Armstrong first person on moon}
^{1986 Nuclear disaster at Chernobyl}

^{1903 Wright brothers 1st plane flight}
^{1912 Titanic sinks on maiden voyage}
^{1914 - 1918 World War I}
^{1922 USSR formed by Soviet states}
^{1939 - 1945 World War II}

^{1854 Crimean War with Russia}
^{1869 Opening of Suez Canal}
^{1871 Franco - Prussian War}
^{1895 Marconi invents wireless telegraphy}
^{1899 Boer War begins}




^{S Halldórsson}^{b. d.}	^{Halldór Sigurjónsson}^{b.1926 d.1979}

^{Á Halldórsson}^{b. d.}

^{B B Halldórsdóttir}^{b. d.}			^{Sveinbjörn Finnsson}^{b.1856 Kolbei, Hnappadalssýsla d.1932}

^{H K Halldórsson}^{b. d.}		^{Árni Sveinbjörnsson}^{b.1891 Króki í Eyrarsveit Snćfel d.1963}	^{Guđný Margrét Árnadóttir}^{b.1865 Króki i Eyrarsveit d.1956}

	^{K S Árnadóttir}^{b. d.}

		^{Herdís Sigurlín Gísladóttir}^{b.1899 Ţorgeirsfelli í Stađarsvei d.1996}