Family tree Jacobs » Jantje Koens (1905-1993)

Personal data Jantje Koens 


Household of Jantje Koens

She is married to Pieter Roelfsema.

They got married on June 16, 1928 at Onstwedde, she was 22 years old.

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Timeline Jantje Koens

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Ancestors (and descendant) of Jantje Koens

Berend Koens
1873-1918

Jantje Koens
1905-1993

1928

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Historical events

  • The temperature on July 19, 1905 was between 9.8 °C and 17.9 °C and averaged 14.5 °C. There was 3.3 hours of sunshine (20%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the 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 August 1, 1901 to August 16, 1905 the cabinet Kuijper, with Dr. A. Kuijper (AR) as prime minister.
  • 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 1905: Source: Wikipedia
    • The Netherlands had about 5.5 million citizens.
    • January 26 » The world's largest diamond ever, the Cullinan weighing 3,106.75 carats (0.621350kg), is found at the Premier Mine near Pretoria in South Africa.
    • April 30 » Albert Einstein completes his doctoral thesis at the University of Zurich.
    • May 5 » The trial in the Stratton Brothers case begins in London, England; it marks the first time that fingerprint evidence is used to gain a conviction for murder.
    • June 27 » During the Russo-Japanese War, sailors start a mutiny aboard the Russian battleship Potemkin.
    • June 30 » Albert Einstein sends the article On the Electrodynamics of Moving Bodies, in which he introduces special relativity, for publication in Annalen der Physik.
    • November 18 » Prince Carl of Denmark becomes King Haakon VII of Norway.
  • The temperature on June 16, 1928 was between 6.3 °C and 14.9 °C and averaged 10.3 °C. There was 5.5 mm of rain. There was 8.3 hours of sunshine (50%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the 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 March 8, 1926 to August 10, 1929 the cabinet De Geer I, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
  • In the year 1928: Source: Wikipedia
    • The Netherlands had about 7.6 million citizens.
    • January 31 » Leon Trotsky is exiled to Alma-Ata.
    • May 15 » Walt Disney character Mickey Mouse premieres in his first cartoon, "Plane Crazy".
    • July 7 » Sliced bread is sold for the first time (on the inventor's 48th birthday) by the Chillicothe Baking Company of Chillicothe, Missouri.
    • August 27 » The Kellogg–Briand Pact outlawing war is signed by fifteen nations. Ultimately sixty-one nations will sign it.
    • November 15 » The RNLI lifeboat Mary Stanford capsized in Rye Harbour with the loss of the entire 17-man crew.
    • December 17 » Indian revolutionaries Bhagat Singh, Sukhdev Thapar and Shivaram Rajguru assassinate British police officer James Saunders in Lahore, Punjab, to avenge the death of Lala Lajpat Rai at the hands of the police. The three were executed in 1931.
  • The temperature on October 16, 1993 was between 0.1 °C and 8.8 °C and averaged 5.1 °C. There was 0.7 mm of rain during 1.6 hours. There was 0.7 hours of sunshine (7%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-northwest. 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 1993: Source: Wikipedia
    • The Netherlands had about 15.2 million citizens.
    • February 8 » An Iran Air Tours Tupolev Tu-154 and an Iranian Air Force Sukhoi Su-24 collide in mid-air near Qods, Iran, killing all 133 people on board both aircraft.
    • April 11 » Four hundred fifty prisoners rioted at the Southern Ohio Correctional Facility in Lucasville, Ohio, and continued to do so for ten days, citing grievances related to prison conditions, as well as the forced vaccination of Nation of Islam prisoners (for tuberculosis) against their religious beliefs.
    • August 31 » Russia completes removing its troops from Lithuania.
    • October 4 » Battle of Mogadishu occurs killing 18 U.S. Special Forces, two UN Peacekeepers and at least 600 Somalian militia men and civilians.
    • October 7 » The flood of '93 ends at St. Louis, Missouri, 103 days after it began, as the Mississippi River falls below flood stage.
    • November 20 » Macedonia's deadliest aviation disaster occurs Avioimpex Flight 110, a Yakovlev Yak-42 crashes near Ohrid killing all 116 people on board.


Same birth/death day

Source: Wikipedia

Source: Wikipedia


About the surname Koens

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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/I31346.php : accessed February 4, 2026), "Jantje Koens (1905-1993)".