Pétur Björn Jóhannesson, b: 1877 - Breiðabólstaðarsókn, Húnavatnssýsla

^{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}

^{1804 Napoleon becomes French Emperor}
^{1805 Battle of Trafalgar, Nelson killed}
^{1815 Battle of Waterloo, Napoleon defeat}
^{1830 French Revolution}
^{1837 Queen Victoria assumes throne}



		^{Jóhannes Jóhannesson}^{b.1842 Hjaltaba, Húnavatnssýsla d.1901}

	^{Pétur Björn Jóhannesson}^{b.1877 Breiðab, Húnavatnssýsla d.}		^{Jóhannes Jónasson}^{b.1806 Kirkjuhvammur, Iceland d.1862}

		^{Ólöf Jóhannesdóttir}^{b.1842 Kirkjuh, Húnavatnssýsla d.}	^{Margrét Jónsdóttir}^{b.1808 Saurar, Iceland d.1865 Húnavatnssýsla, Iceland}

^{Ólafía Steinunn Pjetursdóttir}^{b.1888 Breiðab, Húnavatnssýsla d.}



	^{Sigurlaug Jónsdóttir}^{b.1877 Hjaltaba, Húnavatnssýsla d.}