Descendants Hemerik-Broekhuizen-Huner-Koper-Barink » Willem Koolen (1874-1949)

Personal data Willem Koolen 


Household of Willem Koolen

He is married to Aagje Wallaart.

They got married on October 21, 1896 at Leiden, he was 22 years old.


Child(ren):

  1. Elisabeth Koolen  1898-????
  4. Maria Koolen  1902-
  5. Aagje Koolen  1904-
  7. Willem Koolen  1907-
  10. Lena Koolen  1913-
  11. Gerrit Koolen  1914-

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Timeline Willem Koolen

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Ancestors (and descendant) of Willem Koolen


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Relationship Willem Koolen

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Historical events

Birthday January 4, 1874

  • The temperature on January 4, 1874 was about 3.0 °C. There was 2 mm of rain. The air pressure was 8 kgf/m2 and came mainly from the west-southwest. The airpressure was 75 cm mercury. The atmospheric humidity was 89%. Source: KNMI
  • Koning Willem III (Huis van Oranje-Nassau) was from 1849 till 1890 sovereign of the Netherlands (also known as Koninkrijk der Nederlanden)
  • From July 6, 1872 till August 27, 1874 the Netherlands had a cabinet De Vries - Fransen van de Putte with the prime ministers Mr. G. de Vries Azn. (liberaal) and I.D. Fransen van de Putte (liberaal).
  • From August 27, 1874 till November 3, 1877 the Netherlands had a cabinet Heemskerk - Van Lijnden van Sandenburg with the prime ministers Mr. J. Heemskerk Azn. (conservatief) and Mr. C.Th. baron Van Lijnden van Sandenburg (AR).
  • In the year 1874: Source: Wikipedia
    • The Netherlands had about 4.0 million citizens.
    • February 21 » The Oakland Daily Tribune publishes its first edition.
    • February 28 » One of the longest cases ever heard in an English court ends when the defendant is convicted of perjury for attempting to assume the identity of the heir to the Tichborne baronetcy.
    • March 15 » France and Vietnam sign the Second Treaty of Saigon, further recognizing the full sovereignty of France over Cochinchina.
    • March 18 » Hawaii signs a treaty with the United States granting exclusive trade rights.
    • May 27 » The first group of Dorsland trekkers under the leadership of Gert Alberts leaves Pretoria.
    • August 5 » Japan launches its postal savings system, modeled after a similar system in the United Kingdom.

Day of marriage October 21, 1896

Day of death November 13, 1949

  • The temperature on November 13, 1949 was between 6.1 °C and 8.5 °C and averaged 7.3 °C. There was 20.0 mm of rain during 9.9 hours. There was 0.7 hours of sunshine (8%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the west. Source: KNMI
  • Koningin Juliana (Huis van Oranje-Nassau) was from September 4, 1948 till April 30, 1980 sovereign of the Netherlands (also known as Koninkrijk der Nederlanden)
  • From August 7, 1948 till March 15, 1951 the Netherlands had a cabinet Drees - Van Schaik with the prime ministers Dr. W. Drees (PvdA) and Mr. J.R.H. van Schaik (KVP).
  • In the year 1949: Source: Wikipedia
    • The Netherlands had about 9.9 million citizens.
    • March 8 » President of France Vincent Auriol and ex-emperor of Annam Bảo Đại sign the Élysée Accords, giving Vietnam greater independence from France and creating the State of Vietnam to oppose Viet Minh-led Democratic Republic of Vietnam.
    • March 10 » Mildred Gillars ("Axis Sally") is convicted of treason.
    • April 18 » The keel for the aircraft carrier USSUnited States is laid down at Newport News Drydock and Shipbuilding. However, construction is canceled five days later, resulting in the Revolt of the Admirals.
    • May 6 » EDSAC, the first practical electronic digital stored-program computer, runs its first operation.
    • July 1 » The merger of two princely states of India, Cochin and Travancore, into the state of Thiru-Kochi (later re-organized as Kerala) in the Indian Union ends more than 1,000 years of princely rule by the Cochin royal family.
    • November 2 » The Dutch–Indonesian Round Table Conference ends with the Netherlands agreeing to transfer sovereignty of the Dutch East Indies to the United States of Indonesia.

About the surname Koolen

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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/I45893.php : accessed March 7, 2026), "Willem Koolen (1874-1949)".