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Mary Mclean 1900 - 1977

Mary Mclean of Franklin Square, Nassau County, New York was born on September 22, 1900, and died at age 77 years old in December 1977.
Mary Mclean
Franklin Square, Nassau County, New York 11010
September 22, 1900
December 1977
Female
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Mary Mclean's History: 1900 - 1977

Uncover new discoveries and connections today by sharing about people & moments from yesterday.
  • 09/22
    1900

    Birthday

    September 22, 1900
    Birthdate
    Unknown
    Birthplace
  • 12/dd
    1977

    Death

    December 1977
    Death date
    Unknown
    Cause of death
    Unknown
    Death location
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  • Did you know?
    Mary Mclean lived 4 years longer than the average family member when died at the age of 77.
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Did you know?
In 1900, in the year that Mary Mclean 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 1920, at the age of 20 years old, Mary was alive when on November 2, radio station KDKA began broadcasting in Pittsburgh, PA. This was the first commercial radio broadcast in the United States. Westinghouse, a leading manufacturer of radios and the backer of the station, chose the date because of the Presidential election. People liked it because they could hear about the results of the election between Harding and Cox before the morning papers arrived. Four years later, there were 600 commercial stations broadcasting in the U.S.
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Mary Mclean's Family Tree & Friends

Mary Mclean's Family Tree

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Mary's Friends

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