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Helen M Henry 1900 - 1991

Helen M Henry was born on July 5, 1900, and died at age 91 years old on October 16, 1991. Family, friend, or fan, this family history biography is for you to remember Helen M Henry.
Helen M Henry
July 5, 1900
October 16, 1991
Female
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Helen M Henry's History: 1900 - 1991

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  • 07/5
    1900

    Birthday

    July 5, 1900
    Birthdate
    Unknown
    Birthplace
  • 10/16
    1991

    Death

    October 16, 1991
    Death date
    Unknown
    Cause of death
    Unknown
    Death location
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  • Did you know?
    Helen M Henry lived 19 years longer than the average family member when died at the age of 91.
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Did you know?
In 1900, in the year that Helen M Henry was born, 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.
Did you know?
In 1919, Helen was 19 years old when in Norfolk Virginia, the first rotary dial telephones were introduced by the American Telephone and Telegraph Company (AT&T), making it easier to make a call without an operator.
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Helen Henry's Family Tree & Friends

Helen Henry's Family Tree

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