Family tree Brouwer - Koster » Leendert Marinus Valkenburgh (1870-1942)

Personal data Leendert Marinus Valkenburgh 


Household of Leendert Marinus Valkenburgh

He is married to Jacoba Maria Blansjaar.

They got married on April 17, 1895 at Leiden, Zuid-Holland, Nederland, he was 25 years old.

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Historical events

Birthday February 12, 1870

  • The temperature on February 12, 1870 was about -4.7 °C. There was 0.1 mm of rain. The air pressure was 22 kgf/m2 and came mainly from the east-northeast. The airpressure was 77 cm mercury. The atmospheric humidity was 90%. 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 June 4, 1868 till January 4, 1871 the Netherlands had a cabinet Van Bosse - Fock with the prime ministers Mr. P.P. van Bosse (liberaal) and Mr. C. Fock (liberaal).
  • In the year 1870: Source: Wikipedia
    • The Netherlands had about 3.6 million citizens.
    • January 23 » In Montana, U.S. cavalrymen kill 173 Native Americans, mostly women and children, in what becomes known as the Marias Massacre.
    • January 26 » Reconstruction Era: Virginia rejoins the Union.
    • February 15 » Stevens Institute of Technology is founded in New Jersey, USA and offers the first Bachelor of Engineering degree in Mechanical Engineering.
    • September 4 » Emperor Napoleon III of France is deposed and the Third Republic is declared.
    • October 7 » Franco-Prussian War: Léon Gambetta escapes the siege of Paris in a hot-air balloon.
    • October 27 » Franco-Prussian War: Marshal Bazaine surrenders to Prussian forces at the conclusion of the Siege of Metz along with 140,000 French soldiers.

Day of death July 18, 1942

  • The temperature on July 18, 1942 was between 12.0 °C and 19.4 °C and averaged 14.9 °C. There was 6.1 mm of rain during 2.5 hours. There was 2.6 hours of sunshine (16%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. 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, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
  • In the year 1942: Source: Wikipedia
    • The Netherlands had about 9.0 million citizens.
    • February 18 » World War II: The Imperial Japanese Army begins the systematic extermination of perceived hostile elements among the Chinese in Singapore.
    • February 27 » World War II: During the Battle of the Java Sea, an Allied strike force is defeated by a Japanese task force in the Java Sea in the Dutch East Indies.
    • August 15 » World War II: Operation Pedestal: The oil tanker SSOhio reaches the island of Malta barely afloat carrying vital fuel supplies for the island's defenses.
    • September 21 » The Holocaust in Poland: At the end of Yom Kippur, Germans order Jews to permanently move from Konstantynów to Biała Podlaska.
    • October 3 » A German V-2 rocket reaches a record 85 km (46 nm) in altitude.
    • December 2 » World War II: During the Manhattan Project, a team led by Enrico Fermi initiates the first artificial self-sustaining nuclear chain reaction.


Same birth/death day

Source: Wikipedia

Source: Wikipedia


About the surname Valkenburgh


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/I35149.php : accessed January 30, 2026), "Leendert Marinus Valkenburgh (1870-1942)".