G R Pétursdóttir, 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}




	^{G A Egilsson}^{b. d.}



^{B Agnarsdóttir}^{b. d.}

		^{Pétur Gunnar Stefánsson}^{b.1910 Tumakoti í Vogum á Vat d.1998 Hrafnista, Reykjavik}

	^{G R Pétursdóttir}^{b. d.}		^{Sveinbjörn Finnsson}^{b.1856 Kolbeinsstađasó, Iceland d.1932}

		^{Guđrún Dagbjör Sveinbjörnsdóttir}^{b.1912 Hellnafelli í Grundarfirđi d.2003 Hrafnistu í Reykjavik}	^{Guđný Margrét Árnadóttir}^{b.1865 (Króki i Eyrarsve, Iceland d.1956}