Family tree Van Loon » Helena Maria de Groot (1912-1991)

Personal data Helena Maria de Groot 


Household of Helena Maria de Groot

She is married to Hendrikus Theodorus Blom.

They got married on April 8, 1942 at Voorhout, she was 29 years old.

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Timeline Helena Maria de Groot

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Ancestors (and descendant) of Helena Maria de Groot

Cornelis de Groot
1845-1902
Helena Diemel
1854-1902
Martinus van den Nouland
1859-1939
Maria van Werkhoven
1859-1933

Helena Maria de Groot
1912-1991

1942

Hendrikus Theodorus Blom
1913-????


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    Historical events

    Birthday August 26, 1912

    • The temperature on August 26, 1912 was between 10.7 °C and 17.5 °C and averaged 15.0 °C. There was 20.5 mm of rain. There was 0.3 hours of sunshine (2%). The average windspeed was 4 Bft (moderate breeze) 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 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.
      • January 5 » The 6th All-Russian Conference of the Russian Social Democratic Labour Party (Prague Party Conference) opens. In the course of the conference, Vladimir Lenin and his supporters break from the rest of the party to form the Bolshevik movement.
      • January 6 » New Mexico is admitted to the Union as the 47th U.S. state.
      • January 8 » The African National Congress is founded, under the name South African Native National Congress (SANNC).
      • May 8 » Paramount Pictures is founded.
      • July 30 » Japan's Emperor Meiji dies and is succeeded by his son Yoshihito, who is now known as the Emperor Taishō.
      • October 24 » First Balkan War: The Battle of Kirk Kilisse concludes with a Bulgarian victory against the Ottoman Empire.

    Day of marriage April 8, 1942

    • The temperature on April 8, 1942 was between 5.5 °C and 11.8 °C and averaged 8.7 °C. There was 0.6 mm of rain during 0.3 hours. There was 6.2 hours of sunshine (46%). 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 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.
      • January 13 » World War II: First use of an aircraft ejection seat by a German test pilot in a Heinkel He 280 jet fighter.
      • May 15 » World War II: In the United States, a bill creating the Women's Army Auxiliary Corps (WAAC) is signed into law.
      • June 11 » World War II: The United States agrees to send Lend-Lease aid to the Soviet Union.
      • August 6 » Queen Wilhelmina of the Netherlands becomes the first reigning queen to address a joint session of the United States Congress.
      • August 25 » World War II: Second day of the Battle of the Eastern Solomons; a Japanese naval transport convoy headed towards Guadalcanal is turned back by an Allied air attack.
      • November 27 » World War II: At Toulon, the French navy scuttles its ships and submarines to keep them out of Nazi hands.

    Day of death June 15, 1991

    • The temperature on June 15, 1991 was between 9.7 °C and 14.4 °C and averaged 11.9 °C. There was 17.3 mm of rain during 11.8 hours. The almost completely overcast was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
    • Koningin Beatrix (Huis van Oranje-Nassau) was from April 30, 1980 till April 30, 2013 sovereign of the Netherlands (also known as Koninkrijk der Nederlanden)
    • In The Netherlands , there was from Tuesday, November 7, 1989 to Monday, August 22, 1994 the cabinet Lubbers III, with Drs. R.F.M. Lubbers (CDA) as prime minister.
    • In the year 1991: Source: Wikipedia
      • The Netherlands had about 15.0 million citizens.
      • February 1 » A runway collision between USAir Flight 1493 and SkyWest Flight 5569 at Los Angeles International Airport results in the deaths of 34 people, and injuries to 30 others.
      • February 16 » Nicaraguan Contras leader Enrique Bermúdez is assassinated in Managua.
      • May 28 » The capital city of Addis Ababa falls to the Ethiopian People's Revolutionary Democratic Front, ending both the Derg regime in Ethiopia and the Ethiopian Civil War.
      • September 9 » Tajikistan declares independence from the Soviet Union.
      • September 17 » Estonia, North Korea, South Korea, Latvia, Lithuania, the Marshall Islands and Micronesia join the United Nations.
      • September 29 » A Haitian coup d'état occurs.
    

    Same birth/death day

    Source: Wikipedia

    Source: Wikipedia


    About the surname De Groot

    • View the information that Genealogie Online has about the surname De Groot.
    • Check the information Open Archives has about De Groot.
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    The Family tree Van Loon publication was prepared by .contact the author
    When copying data from this family tree, please include a reference to the origin:
    Freek van Loon, "Family tree Van Loon", database, Genealogy Online (https://www.genealogieonline.nl/van-loon-stamboom/I15985.php : accessed February 25, 2026), "Helena Maria de Groot (1912-1991)".