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Mary Mcdonald 1898 - 1973

Mary Mcdonald of East Elmhurst, Queens County, NY was born on October 5, 1898, and died at age 74 years old in February 1973.
Mary Mcdonald
East Elmhurst, Queens County, NY 11370
October 5, 1898
February 1973
Female
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Mary Mcdonald's History: 1898 - 1973

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  • 10/5
    1898

    Birthday

    October 5, 1898
    Birthdate
    Unknown
    Birthplace
  • 02/dd
    1973

    Death

    February 1973
    Death date
    Unknown
    Cause of death
    Unknown
    Death location
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  • Did you know?
    Mary Mcdonald lived 2 years longer than the average family member when died at the age of 74.
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Did you know?
In 1898, in the year that Mary Mcdonald was born, on February 15th, the USS Maine exploded and sank in Havana harbor. The reason for the explosion has never been found, but it killed 266 men. "Remember the Maine" became a rallying cry and precipitated the United States' declaration of war on Spain two months later - the beginning of the Spanish-American War. On December 10th, the war ended with the signing of the Treaty of Paris. The Treaty gave the U.S. Puerto Rico, the Philippines, Guam - for $20 million - and, temporarily, Cuba.
Did you know?
In 1900, at the age of merely 2 years old, Mary 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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Mary Mcdonald's Family Tree & Friends

Mary Mcdonald's Family Tree

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Mary's Friends

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