Family tree Van Koert » Jacob Gerardus van Roon (1881-1961)

Personal data Jacob Gerardus van Roon 


Household of Jacob Gerardus van Roon

He is married to Hesje Laduk.

They got married on April 20, 1904 at Haarlem, he was 22 years old.

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Historical events

  • The temperature on May 16, 1881 was about 12.9 °C. There was 0.4 mm of rain. The air pressure was 21 kgf/m2 and came mainly from the west-southwest. The airpressure was 75 cm mercury. The atmospheric humidity was 73%. Source: KNMI
  • Koning Willem III (Huis van Oranje-Nassau) was from 1849 till 1890 sovereign of the Netherlands (also known as Koninkrijk der Nederlanden)
  • In The Netherlands , there was from August 20, 1879 to April 23, 1883 the cabinet Van Lijnden van Sandenburg, with Mr. C.Th. baron Van Lijnden van Sandenburg (conservatief-AR) as prime minister.
  • In the year 1881: Source: Wikipedia
    • The Netherlands had about 4.5 million citizens.
    • February 24 » China and Russia sign the Sino-Russian Ili Treaty.
    • May 10 » Carol I is crowned the King of the Romanian Kingdom.
    • May 12 » In North Africa, Tunisia becomes a French protectorate.
    • May 21 » The American Red Cross is established by Clara Barton in Washington, D.C.
    • June 28 » The Austro–Serbian Alliance of 1881 is secretly signed.
    • September 19 » U.S. President James A. Garfield dies of wounds suffered in a July 2 shooting. Vice President Chester A. Arthur becomes President upon Garfield's death.
  • The temperature on January 31, 1961 was between 5.3 °C and 7.8 °C and averaged 6.3 °C. There was 0.9 mm of rain during 1.5 hours. There was 1.0 hours of sunshine (11%). The almost completely overcast was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. 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)
  • In The Netherlands , there was from May 19, 1959 to July 24, 1964 the cabinet De Quay, with Prof. dr. J.E. de Quay (KVP) as prime minister.
  • In the year 1961: Source: Wikipedia
    • The Netherlands had about 11.6 million citizens.
    • January 31 » Project Mercury: Mercury-Redstone 2: Ham the Chimp travels into outer space.
    • September 1 » The Eritrean War of Independence officially begins with the shooting of Ethiopian police by Hamid Idris Awate.
    • September 16 » Pakistan establishes its Space and Upper Atmosphere Research Commission with Abdus Salam as its head.
    • October 30 » The Soviet Union detonates the Tsar Bomba, the most powerful explosive device ever detonated.
    • November 21 » The "La Ronde" opens in Honolulu, first revolving restaurant in the United States.
    • November 29 » Project Mercury: Mercury-Atlas 5 Mission: Enos, a chimpanzee, is launched into space. The spacecraft orbits the Earth twice and splashes down off the coast of Puerto Rico.


Same birth/death day

Source: Wikipedia

Source: Wikipedia


About the surname Van Roon

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When copying data from this family tree, please include a reference to the origin:
Rob van Koert, "Family tree Van Koert", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-koert/I67201.php : accessed March 3, 2026), "Jacob Gerardus van Roon (1881-1961)".