P J Jónasson, b: -

^{1969 Armstrong first person on moon}
^{1986 Nuclear disaster at Chernobyl}
^{1989 Berlin wall falls}
^{1991 Persian Gulf War}
^{1991 Break-up of the Soviet Union}

^{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}


			^{Jónas Jón Gunnarsson}^{b.1891 Keflavík í Hegr, Iceland d.1939}

		^{Jónas Sigurberg Jónasson}^{b.1919 Syðri, Skagafjarðarsýsla d.1984}	^{Steinunn Sigurjónsdóttir}^{b.1891 Glaumbæjarsókn, Iceland d.1981}

	^{P J Jónasson}^{b. d.}

		^{Ásta Guðrún Pjetursdóttir}^{b.1919 Heiðarbæ í Þingvallasvei d.2006}

^{A Pétursson}^{b. d.}



	^{S O Ottesen}^{b. d.}