Eijsermans family tree » Gerrit Jan Koopman (1900-1979)

Personal data Gerrit Jan Koopman 


Household of Gerrit Jan Koopman

He is married to Hendrika Johanna Knapen.

They got married.


Child(ren):

  1. (Not public)

Do you have supplementary information, corrections or questions with regards to Gerrit Jan Koopman?
The author of this publication would love to hear from you!

Ancestors (and descendant) of Gerrit Jan Koopman

Gerrit Jan Koopman
1900-1979



With Quick Search you can search by name, first name followed by a last name. You type in a few letters (at least 3) and a list of personal names within this publication will immediately appear. The more characters you enter the more specific the results. Click on a person's name to go to that person's page.

  • You can enter text in lowercase or uppercase.
  • If you are not sure about the first name or exact spelling, you can use an asterisk (*). Example: "*ornelis de b*r" finds both "cornelis de boer" and "kornelis de buur".
  • It is not possible to enter charachters outside the standard alphabet (so no diacritic characters like ö and é).

The data shown has no sources.

Historical events

  • The temperature on June 1, 1900 was about 10.7 °C. The airpressure was 76 cm mercury. The atmospheric humidity was 94%. 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 27, 1897 to August 1, 1901 the cabinet Pierson, with Mr. N.G. Pierson (unie-liberaal) as prime minister.
  • In the year 1900: Source: Wikipedia
    • The Netherlands had about 5.1 million citizens.
    • January 2 » American statesman and diplomat John Hay announces the Open Door Policy to promote trade with China.
    • February 14 » British forces begin the Battle of the Tugela Heights in an effort to lift the Siege of Ladysmith.
    • February 18 » Second Boer War: Imperial forces suffer their worst single-day loss of life on Bloody Sunday, the first day of the Battle of Paardeberg.
    • April 5 » Archaeologists in Knossos, Crete, discover a large cache of clay tablets with hieroglyphic writing in a script they call Linear B.
    • October 19 » Max Planck discovers Planck's law of black-body radiation.
    • December 14 » Quantum mechanics: Max Planck presents a theoretical derivation of his black-body radiation law.
  • The temperature on January 29, 1979 was between -5.2 °C and 2.4 °C and averaged -0.2 °C. There was 2.5 mm of rain during 2.6 hours. The almost completely overcast was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southeast. 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 Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
  • In the year 1979: Source: Wikipedia
    • The Netherlands had about 14.0 million citizens.
    • March 5 » Soviet probes Venera 11, Venera 12 and the German-American solar satellite Helios II all are hit by "off the scale" gamma rays leading to the discovery of soft gamma repeaters.
    • April 1 » Iran becomes an Islamic republic by a 99% vote, officially overthrowing the Shah.
    • May 25 » American Airlines Flight 191: A McDonnell Douglas DC-10 crashes during takeoff at O'Hare International Airport, Chicago, killing all 271 on board and two people on the ground.
    • July 16 » Iraqi President Ahmed Hassan al-Bakr resigns and is replaced by Saddam Hussein.
    • September 16 » The Sugarhill Gang were formed and rappers delight was released.
    • October 1 » Pope John Paul II begins his first pastoral visit to the United States.


Same birth/death day

Source: Wikipedia

  • 1899 » Edward Charles Titchmarsh, English mathematician and academic († 1963)
  • 1901 » Hap Day, Canadian ice hockey player, referee, and manager († 1990)
  • 1901 » John Van Druten, English-American playwright and director († 1957)
  • 1901 » Tom Gorman, Australian rugby league player († 1978)
  • 1903 » Hans Vogt, Norwegian linguist and academic († 1986)
  • 1903 » Vasyl Velychkovsky, Ukrainian-Canadian bishop and martyr († 1973)

Source: Wikipedia


About the surname Koopman

  • View the information that Genealogie Online has about the surname Koopman.
  • Check the information Open Archives has about Koopman.
  • Check the Wie (onder)zoekt wie? register to see who is (re)searching Koopman.

When copying data from this family tree, please include a reference to the origin:
J Eijsermans, "Eijsermans family tree", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eijsermans/I495081.php : accessed January 24, 2026), "Gerrit Jan Koopman (1900-1979)".