Family tree Brouwer - Koster » Willem Koster (1897-????)

Personal data Willem Koster 


Household of Willem Koster

He is married to Wilhelmina Carolina den Haan.

They got married on June 23, 1920 at Rotterdam, Zuid-Holland, Nederland, he was 22 years old.

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Timeline Willem Koster

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Ancestors (and descendant) of Willem Koster


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Historical events

Birthday August 31, 1897

  • The temperature on August 31, 1897 was about 15.3 °C. The airpressure was 75 cm mercury. The atmospheric humidity was 85%. Source: KNMI
  • Koningin Wilhelmina (Huis van Oranje-Nassau) was from 1890 till 1948 sovereign of the Netherlands (also known as Koninkrijk der Nederlanden)
  • Regentes Emma (Huis van Oranje-Nassau) was from 1890 till 1898 sovereign of the Netherlands (also known as Koninkrijk der Nederlanden)
  • In The Netherlands , there was from May 9, 1894 to July 27, 1897 the cabinet Roëll, with Jonkheer mr. J. Roëll (oud-liberaal) as prime minister.
  • In The Netherlands , there was from July 27, 1897 to August 1, 1901 the cabinet Pierson, with Mr. N.G. Pierson (unie-liberaal) as prime minister.
  • In the year 1897: Source: Wikipedia
    • The Netherlands had about 5.1 million citizens.
    • January 31 » Czechoslav Trade Union Association is founded in Prague.
    • April 30 » J. J. Thomson of the Cavendish Laboratory announces his discovery of the electron as a subatomic particle, over 1,800 times smaller than a proton (in the atomic nucleus), at a lecture at the Royal Institution in London.
    • July 26 » Anglo-Afghan War: The Pashtun fakir Saidullah leads an army of more than 10,000 to begin a siege of the British garrison in the Malakand Agency of the North West Frontier Province of India.
    • September 11 » After months of pursuit, generals of Menelik II of Ethiopia capture Gaki Sherocho, the last king of Kaffa, bringing an end to that ancient kingdom.
    • November 1 » The first Library of Congress building opens its doors to the public; the library had previously been housed in the Congressional Reading Room in the U.S. Capitol.
    • December 6 » London becomes the world's first city to host licensed taxicabs.

Day of marriage June 23, 1920

  • The temperature on June 23, 1920 was between 9.2 °C and 20.6 °C and averaged 14.7 °C. There was 4.2 hours of sunshine (25%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. 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 September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
  • In the year 1920: Source: Wikipedia
    • The Netherlands had about 6.8 million citizens.
    • February 13 » The Negro National League is formed.
    • February 29 » Czechoslovak National Assembly adopts the Constitution.
    • March 13 » The Kapp Putsch briefly ousts the Weimar Republic government from Berlin.
    • April 15 » Two security guards are murdered during a robbery in South Braintree, Massachusetts. Anarchists Sacco and Vanzetti would be convicted of and executed for the crime, amid much controversy.
    • August 16 » Polish–Soviet War: The Battle of Radzymin concludes; the Soviet Red Army is forced to turn away from Warsaw.
    • November 7 » Patriarch Tikhon of Moscow issues a decree that leads to the formation of the Russian Orthodox Church Outside Russia.


Same birth/death day

Source: Wikipedia


About the surname Koster

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The Family tree Brouwer - Koster publication was prepared by .contact the author
When copying data from this family tree, please include a reference to the origin:
Eric Brouwer, "Family tree Brouwer - Koster", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eric-brouwer/I59635.php : accessed January 16, 2026), "Willem Koster (1897-????)".