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John Mann 1899 - 1969

John Mann of Norfolk, Norfolk City County, Virginia was born on June 6, 1899, and died at age 70 years old in November 1969.
John Mann
Norfolk, Norfolk City County, Virginia 23502
June 6, 1899
November 1969
Male
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John Mann's History: 1899 - 1969

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  • 06/6
    1899

    Birthday

    June 6, 1899
    Birthdate
    Unknown
    Birthplace
  • 11/dd
    1969

    Death

    November 1969
    Death date
    Unknown
    Cause of death
    Unknown
    Death location
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  • Did you know?
    John Mann lived 3 years shorter than the average family member when died at the age of 70.
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Did you know?
In 1899, in the year that John Mann was born, on February 14th, the first voting machines were approved by Congress for use in federal elections. Several states were already using voting machines in their elections and the Federal government was finally convinced of their safety and accuracy.
Did you know?
In 1900, at the age of just 1 year old, John was alive when the German physicist Max Planck formulated an energy theory, postulating the existence of "quanta," which lays the groundwork for the quantum theory of modern physics. In December, he introduced a paper on the Planck postulate which stated that E=hv - the energy of a photon is proportional to its frequency times a constant. Planck won a Nobel Prize in 1918 for his work in theoretical Physics.
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John Mann's Family Tree & Friends

John Mann's Family Tree

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