J K Petersen, 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}




^{P D Vilbergsson}^{b. d.}	^{Vilbergur Sigurður Jónsson}^{b.1929 Iceland d.2002}

^{J B Vilbergsdóttir}^{b. d.}

^{Þ Vilbergsson}^{b. d.}			^{Jens Christian Petersen}^{b.1859 Miðgerði b, Faroe Islands d.1946 Kollafjørð, Faroe Islands}

^{S Vilbergsdóttir}^{b. d.}		^{Nicolai Fredrik Max Petersen}^{b.1896 Miðgerði b, Faroe Islands d.1971 Kollafjørð, Faroe Islands}	^{Sara Sofie Joensen}^{b.1865 Kollafjørð, Faroe Islands d.1963 Kollafjørð, Faroe Islands}

	^{J K Petersen}^{b. d.}

		^{Petra Danielle Jacobsen}^{b.1904 Kollafjørð, Faroe Islands d.1983 Kollafjørð, Faroe Islands}