Family tree Jacobs » Roelof Siepel (1919-1967)

Personal data Roelof Siepel 


Household of Roelof Siepel

He is married to Fennechien Nendorff.

They got married

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Timeline Roelof Siepel

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Ancestors (and descendant) of Roelof Siepel


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Historical events

  • The temperature on May 4, 1919 was between 4.7 °C and 18.6 °C and averaged 12.3 °C. There was 8.9 hours of sunshine (59%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south east. 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 1919: Source: Wikipedia
    • The Netherlands had about 6.7 million citizens.
    • January 15 » Rosa Luxemburg and Karl Liebknecht, two of the most prominent socialists in Germany, are tortured and murdered by the Freikorps at the end of the Spartacist uprising.
    • February 14 » The Polish–Soviet War begins.
    • May 29 » Albert Einstein's theory of general relativity is tested (later confirmed) by Arthur Eddington and Andrew Claude de la Cherois Crommelin
    • July 11 » The eight-hour day and free Sunday become law for workers in the Netherlands.
    • August 8 » The Anglo-Afghan Treaty of 1919 is signed. It establishes peaceful relations between Afghanistan and the UK, and confirms the Durand line as the mutual border. In return, the UK is no longer obligated to subsidize the Afghan government.
    • November 11 » The Industrial Workers of the World attack an Armistice Day parade in Centralia, Washington, ultimately resulting in the deaths of five people.
  • The temperature on June 25, 1967 was between 12.1 °C and 24.1 °C and averaged 18.2 °C. There was 4.4 mm of rain during 1.9 hours. There was 7.0 hours of sunshine (42%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southwest. Source: KNMI
  • Koningin Juliana (Huis van Oranje-Nassau) was from September 4, 1948 till April 30, 1980 sovereign of the Netherlands (also known as Koninkrijk der Nederlanden)
  • In The Netherlands , there was from November 22, 1966 to April 5, 1967 the cabinet Zijlstra, with Prof. dr. J. Zijlstra (ARP) as prime minister.
  • In The Netherlands , there was from April 5, 1967 to Tuesday, July 6, 1971 the cabinet De Jong, with P.J.S. de Jong (KVP) as prime minister.
  • In the year 1967: Source: Wikipedia
    • The Netherlands had about 12.5 million citizens.
    • April 14 » Gnassingbé Eyadéma overthrows President of Togo Nicolas Grunitzky and installs himself as the new president, a title he would hold for the next 38 years.
    • June 2 » Luis Monge is executed in Colorado's gas chamber, in the last pre-Furman execution in the United States.
    • June 9 » Six-Day War: Israel captures the Golan Heights from Syria.
    • August 24 » Led by Abbie Hoffman, the Youth International Party temporarily disrupts trading at the New York Stock Exchange by throwing dollar bills from the viewing gallery, causing trading to cease as brokers scramble to grab them.
    • August 30 » Thurgood Marshall is confirmed as the first African American Justice of the Supreme Court of the United States.
    • December 6 » Adrian Kantrowitz performs the first human heart transplant in the United States.


Same birth/death day

Source: Wikipedia

Source: Wikipedia


About the surname Siepel

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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/I99341.php : accessed May 7, 2025), "Roelof Siepel (1919-1967)".