Spengler family tree » Helena Maria "Marietje" Adèr (1920-1998)

Personal data Helena Maria "Marietje" Adèr 

  • Nickname is Marietje.
  • She was born on March 5, 1920 in Velp.
  • She died on June 21, 1998 in Ede, she was 78 years old.
  • She is buried in Rheden.
  • This information was last updated on April 29, 2025.

Household of Helena Maria "Marietje" Adèr

She is married to Johan Christoph Schönfeld.

They got married on July 21, 1943 at Den Haag, she was 23 years old.


Child(ren):

  2. (Not public)
  4. (Not public)
  5. (Not public)

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Ancestors (and descendant) of Helena Maria Adèr


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Historical events

Birthday March 5, 1920

  • The temperature on March 5, 1920 was between 2.5 °C and 13.3 °C and averaged 7.6 °C. There was 5.3 hours of sunshine (48%). 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 September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
  • In the year 1920: Source: Wikipedia
    • The Netherlands had about 6.8 million citizens.
    • May 16 » In Rome, Pope Benedict XV canonizes Joan of Arc.
    • May 29 » The Louth flood of 1920 was a severe flash flooding in the Lincolnshire market town of Louth which occurred 29 May 1920, resulting in 23 fatalities in 20 minutes. It has been described as one of the most significant flood disasters in Britain during the 20th century.
    • August 16 » The congress of the Communist Party of Bukhara opens. The congress would call for armed revolution.
    • August 19 » The Tambov Rebellion breaks out, in response to the Bolshevik policy of Prodrazvyorstka.
    • September 16 » The Wall Street bombing: A bomb in a horse wagon explodes in front of the J. P. Morgan building in New York City killing 38 and injuring 400.
    • November 2 » In the United States, KDKA of Pittsburgh starts broadcasting as the first commercial radio station. The first broadcast is the result of the 1920 United States presidential election.

Day of marriage July 21, 1943

  • The temperature on July 21, 1943 was between 16.0 °C and 22.9 °C and averaged 18.8 °C. There was 0.5 mm of rain during 0.3 hours. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the 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 July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
  • In the year 1943: Source: Wikipedia
    • The Netherlands had about 9.1 million citizens.
    • January 29 » World War II: The first day of the Battle of Rennell Island, USSChicago(CA-29) is torpedoed and heavily damaged by Japanese bombers.
    • March 14 » The liquidation of the Kraków Ghetto is completed.
    • April 5 » World War II: American bomber aircraft accidentally cause more than 900 civilian deaths, including 209 children, and 1,300 wounded among the civilian population of the Belgian town of Mortsel. Their target was the Erla factory one kilometer from the residential area hit.
    • June 25 » The Holocaust: Jews in the Częstochowa Ghetto in Poland stage an uprising against the Nazis.
    • July 22 » World War II: Axis occupation forces violently disperse a massive protest in Athens, killing 22.
    • September 30 » The United States Merchant Marine Academy is dedicated by President Roosevelt.

Day of death June 21, 1998

  • The temperature on June 21, 1998 was between 16.8 °C and 29.7 °C and averaged 22.6 °C. There was 0.2 mm of rain during 1.0 hours. There was 10.9 hours of sunshine (65%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the 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 Monday, August 22, 1994 to Monday, August 3, 1998 the cabinet a href="https://nl.wikipedia.org/wiki/Kabinet-Kok_I" class="extern">Kok I, with W. Kok (PvdA) as prime minister.
  • In The Netherlands , there was from Monday, August 3, 1998 to Monday, July 22, 2002 the cabinet Kok II, with W. Kok (PvdA) as prime minister.
  • In the year 1998: Source: Wikipedia
    • The Netherlands had about 15.7 million citizens.
    • March 26 » During the Algerian Civil War, the Oued Bouaicha massacre sees fifty-two people, mostly infants, killed with axes and knives.
    • May 6 » Steve Jobs of Apple Inc. unveils the first iMac.
    • May 12 » Four students are shot at Trisakti University, leading to widespread riots and the fall of Suharto.
    • September 14 » Telecommunications companies MCI Communications and WorldCom complete their $37 billion merger to form MCI WorldCom.
    • October 12 » Matthew Shepard, a gay student at University of Wyoming, dies five days after he was beaten outside of Laramie.
    • December 6 » in Venezuela, Hugo Chávez is victorious in presidential elections.


Same birth/death day

Source: Wikipedia

Source: Wikipedia


About the surname Adèr

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The Spengler family tree publication was prepared by .contact the author
When copying data from this family tree, please include a reference to the origin:
Maarten Schönfeld, "Spengler family tree", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-spengler/I3.php : accessed February 27, 2026), "Helena Maria "Marietje" Adèr (1920-1998)".