Family tree Jacobs » Hendrikus Leonardus Semler (1906-)

Personal data Hendrikus Leonardus Semler 


Household of Hendrikus Leonardus Semler

He is married to Catharina Hendrika Hendriks.

They got married on December 20, 1939 at 's-Hertogenbosch, he was 33 years old.

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Timeline Hendrikus Leonardus Semler

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Ancestors (and descendant) of Hendrikus Leonardus Semler


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Historical events

Birthday February 16, 1906

  • The temperature on February 16, 1906 was between 0.4 °C and 6.4 °C and averaged 3.6 °C. There was 0.1 hours of sunshine (1%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the south. 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 17, 1905 to February 11, 1908 the cabinet De Meester, with Mr. Th. de Meester (unie-liberaal) as prime minister.
  • In the year 1906: Source: Wikipedia
    • The Netherlands had about 5.5 million citizens.
    • April 8 » Auguste Deter, the first person to be diagnosed with Alzheimer's disease, dies.
    • September 30 » The Royal Galician Academy, the Galician language's biggest linguistic authority, starts working in La Coruña, Spain.
    • October 11 » San Francisco sparks a diplomatic crisis between the United States and Japan by ordering segregated schools for Japanese students.
    • December 10 » U.S. President Theodore Roosevelt wins the Nobel Peace Prize for his role in the mediation of the Russo-Japanese War, becoming the first American to win a Nobel Prize.
    • December 15 » The London Underground's Great Northern, Piccadilly and Brompton Railway opens.
    • December 24 » Radio: Reginald Fessenden transmits the first radio broadcast; consisting of a poetry reading, a violin solo, and a speech.

Day of marriage December 20, 1939

  • The temperature on December 20, 1939 was between -7.6 °C and 2.6 °C and averaged -1.8 °C. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. 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 June 24, 1937 to July 25, 1939 the cabinet Colijn IV, with Dr. H. Colijn (ARP) as prime minister.
  • In The Netherlands , there was from July 25, 1939 to August 10, 1939 the cabinet Colijn V, with Dr. H. Colijn (ARP) as prime minister.
  • In The Netherlands , there was from August 10, 1939 to September 3, 1940 the cabinet De Geer II, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
  • In the year 1939: Source: Wikipedia
    • The Netherlands had about 8.7 million citizens.
    • August 2 » Albert Einstein and Leo Szilard write a letter to Franklin D. Roosevelt, urging him to begin the Manhattan Project to develop a nuclear weapon.
    • September 1 » The Wound Badge for Wehrmacht, SS, Kriegsmarine, and Luftwaffe soldiers is instituted. The final version of the Iron Cross is also instituted on this date.
    • September 30 » NBC broadcasts the first televised American football game.
    • October 1 » World War II: After a one-month siege, German troops occupy Warsaw.
    • November 4 » World War II: U.S. President Franklin D. Roosevelt orders the United States Customs Service to implement the Neutrality Act of 1939, allowing cash-and-carry purchases of weapons by belligerents.
    • December 12 » HMSDuchess sinks after a collision with HMSBarham off the coast of Scotland with the loss of 124 men.


Same birth/death day

Source: Wikipedia


About the surname Semler

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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/I69698.php : accessed January 31, 2026), "Hendrikus Leonardus Semler (1906-)".