Family tree familie Eilders » Geertje Koster (± 1848-1926)

Personal data Geertje Koster 


Household of Geertje Koster

She is married to Jacob Sonnema.

They got married on May 20, 1886 at Harlingen, Friesland, Netherlands.

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


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 April 15, 1926 was between 5.7 °C and 20.4 °C and averaged 13.2 °C. There was 0.1 mm of rain. There was 8.0 hours of sunshine (58%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-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 August 4, 1925 to March 8, 1926 the cabinet Colijn I, with Dr. H. Colijn (ARP) as prime minister.
  • In The Netherlands , there was from March 8, 1926 to August 10, 1929 the cabinet De Geer I, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
  • In the year 1926: Source: Wikipedia
    • The Netherlands had about 7.4 million citizens.
    • January 8 » Crown Prince Nguyễn Phúc Vĩnh Thuỵ ascends the throne to become the last monarch of Vietnam.
    • March 15 » The dictator Theodoros Pangalos is elected President of Greece without opposition.
    • April 21 » Al-Baqi cemetery, former site of the mausoleum of four Shi'a Imams, is leveled to the ground by Wahhabis.
    • May 9 » Admiral Richard E. Byrd and Floyd Bennett claim to have flown over the North Pole (later discovery of Byrd's diary appears to cast some doubt on the claim.)
    • June 28 » Mercedes-Benz is formed by Gottlieb Daimler and Karl Benz merging their two companies.
    • November 25 » The deadliest November tornado outbreak in U.S. history kills 76 people and injures more than 400.


Same birth/death day

Source: Wikipedia


About the surname Koster

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

When copying data from this family tree, please include a reference to the origin:
B. Eilders, "Family tree familie Eilders", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-familie-eilders-is-samengesteld-door-b.-eilders/I205462.php : accessed May 5, 2024), "Geertje Koster (± 1848-1926)".