Descendants Hemerik-Broekhuizen-Huner-Koper-Barink » Helena Boon (1912-)

Personal data Helena Boon 


Household of Helena Boon

She is married to Pieter Jacobus de Graaf.

They got married on April 11, 1936, she was 24 years old.

Bij vonnis der arrondissementsrechtbank van 's Gravenhage van 16 oktober 1945 en bij inschrijving in het register van de burgerlijke stand van Leiden op 7 november 1945 is huwelijk door echtscheiding ontbonden.

The couple were divorced from November 7, 1945 at Leiden.

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Timeline Helena Boon

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Ancestors (and descendant) of Helena Boon


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Relationship Helena Boon

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Historical events

Birthday March 23, 1912

  • The temperature on March 23, 1912 was between 3.9 °C and 10.1 °C and averaged 6.9 °C. There was 3.7 hours of sunshine (30%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
  • Koningin Wilhelmina (Huis van Oranje-Nassau) was from 1890 till 1948 sovereign of the Netherlands (also known as Koninkrijk der Nederlanden)
  • In The Netherlands , there was from February 12, 1908 to August 29, 1913 the cabinet Heemskerk, with Mr. Th. Heemskerk (AR) as prime minister.
  • In the year 1912: Source: Wikipedia
    • The Netherlands had about 6.0 million citizens.
    • February 12 » The Xuantong Emperor, the last Emperor of China, abdicates.
    • April 2 » The ill-fated RMSTitanic begins sea trials.
    • April 10 » RMS Titanic sets sail from Southampton, England on her maiden and only voyage.
    • April 20 » Opening day for baseball's Tiger Stadium in Detroit, and Fenway Park in Boston.
    • June 4 » Massachusetts becomes the first state of the United States to set a minimum wage.
    • October 11 » First Balkan War: The day after the Battle of Sarantaporo, Greek troops liberate the city of Kozani.

Day of marriage April 11, 1936

  • The temperature on April 11, 1936 was between 1.8 °C and 9.9 °C and averaged 4.7 °C. There was 1.1 mm of rain during 1.9 hours. There was 1.6 hours of sunshine (12%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
  • Koningin Wilhelmina (Huis van Oranje-Nassau) was from 1890 till 1948 sovereign of the Netherlands (also known as Koninkrijk der Nederlanden)
  • In The Netherlands , there was from July 31, 1935 to June 24, 1937 the cabinet Colijn III, with Dr. H. Colijn (ARP) as prime minister.
  • In the year 1936: Source: Wikipedia
    • The Netherlands had about 8.5 million citizens.
    • March 7 » Prelude to World War II: In violation of the Locarno Pact and the Treaty of Versailles, Germany reoccupies the Rhineland.
    • May 9 » Italy formally annexes Ethiopia after taking the capital Addis Ababa on May 5.
    • June 26 » Initial flight of the Focke-Wulf Fw 61, the first practical helicopter.
    • July 26 » King Edward VIII, in one of his few official duties before he abdicates the throne, officially unveils the Canadian National Vimy Memorial.
    • October 4 » The British Union of Fascists and various anti-fascist organizations violently clash in the Battle of Cable Street.
    • October 9 » Boulder Dam (later Hoover Dam) begins to generate electricity and transmit it to Los Angeles.

About the surname Boon

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The Descendants Hemerik-Broekhuizen-Huner-Koper-Barink publication was prepared by .contact the author
When copying data from this family tree, please include a reference to the origin:
R.A.Hemerik, "Descendants Hemerik-Broekhuizen-Huner-Koper-Barink", database, Genealogy Online (https://www.genealogieonline.nl/parenteel-hemerik/I124265.php : accessed February 2, 2026), "Helena Boon (1912-)".