Family tree Jacobs » Jan Treffers (1883-1945)

Personal data Jan Treffers 


Household of Jan Treffers

He is married to Anna Maris.

Permission for the marriage has been obtained in Utrecht on August 11, 1912.

They got married on August 21, 1912 at Utrecht, he was 29 years old.

Event shared with Pieter Treffers (witness), Willem Marius Treffers (witness), Jan Willem Weehuisen (witness), Frederik Willem van Vloten (witness)

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Timeline Jan Treffers

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Ancestors (and descendant) of Jan Treffers


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Historical events

Birthday April 5, 1883

  • The temperature on April 5, 1883 was about 16.1 °C. The air pressure was 2 kgf/m2 and came mainly from the south east. The airpressure was 77 cm mercury. The atmospheric humidity was 55%. 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 Netherlands , there was from April 23, 1884 to April 21, 1888 the cabinet Heemskerk, with Mr. J. Heemskerk Azn. (conservatief) as prime minister.
  • In the year 1883: Source: Wikipedia
    • The Netherlands had about 4.5 million citizens.
    • August 12 » The last quagga dies at the Natura Artis Magistra, a zoo in Amsterdam, Netherlands.
    • August 26 » The 1883 eruption of Krakatoa begins its final, paroxysmal, stage.
    • August 27 » Eruption of Krakatoa: Four enormous explosions destroy the island of Krakatoa and cause years of climate change.
    • October 4 » First meeting of the Boys' Brigade in Glasgow, Scotland.
    • November 9 » The 90th Winnipeg Battalion of Rifles, (later the Royal Winnipeg Rifles) of the Canadian Armed Forces is founded.
    • November 30 » The style of western calendar, Common Era is conveyed to Joseon (Early-Modern Korean kingdom]].

Day of marriage August 21, 1912

  • The temperature on August 21, 1912 was between 11.3 °C and 15.7 °C and averaged 13.2 °C. There was 5.8 mm of rain. There was 7.0 hours of sunshine (49%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the 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 February 12, 1908 to August 29, 1913 the cabinet Heemskerk, with Mr. Th. Heemskerk (AR) as prime minister.
  • In the year 1912: Source: Wikipedia
    • The Netherlands had about 6.0 million citizens.
    • March 5 » Italo-Turkish War: Italian forces are the first to use airships for military purposes, employing them for reconnaissance behind Turkish lines.
    • April 14 » The British passenger liner RMSTitanic hits an iceberg in the North Atlantic at 23:40 (sinks morning of April 15th).
    • August 14 » U.S. Marines invade Nicaragua to support the U.S.-backed government installed there after José Santos Zelaya had resigned three years earlier.
    • October 8 » The First Balkan War begins when Montenegro declares war against the Ottoman Empire.
    • November 2 » Bulgaria defeats the Ottoman Empire in the Battle of Lule Burgas, the bloodiest battle of the First Balkan War, which opens her way to Constantinople.
    • December 28 » The first municipally owned streetcars take to the streets in San Francisco.

Day of death July 5, 1945

  • The temperature on July 5, 1945 was between 10.6 °C and 21.6 °C and averaged 16.6 °C. There was 2.4 hours of sunshine (14%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west-northwest. 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 Netherlands , there was from February 23, 1945 to June 24, 1945 the cabinet Gerbrandy III, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
  • From June 24, 1945 till July 3, 1946 the Netherlands had a cabinet Schermerhorn - Drees with the prime ministers Prof. ir. W. Schermerhorn (VDB) and W. Drees (PvdA).
  • In the year 1945: Source: Wikipedia
    • The Netherlands had about 9.2 million citizens.
    • January 5 » The Soviet Union recognizes the new pro-Soviet Provisional Government of the Republic of Poland.
    • February 13 » World War II: Royal Air Force bombers are dispatched to Dresden, Germany to attack the city with a massive aerial bombardment.
    • March 15 » World War II: Soviet forces begin an offensive to push Germans from Upper Silesia.
    • April 15 » Bergen-Belsen concentration camp is liberated.
    • May 1 » World War II: Yugoslav Partisans liberate Trieste.
    • August 2 » World War II: End of the Potsdam Conference.


Same birth/death day

Source: Wikipedia

Source: Wikipedia


About the surname Treffers

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The Family tree Jacobs publication was prepared by .contact the author
When copying data from this family tree, please include a reference to the origin:
Michael Jacobs, "Family tree Jacobs", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-michael-jacobs/I56464.php : accessed May 7, 2025), "Jan Treffers (1883-1945)".