Family tree Eilander » Jan Leidekker (1908-1981)

Personal data Jan Leidekker 


Household of Jan Leidekker

(1) He is married to Janna Potkamp.

They got married on July 29, 1937, he was 28 years old.


(2) He is married to Henderika Luitina Haveman.

They got married after 1964.

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Timeline Jan Leidekker

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Ancestors (and descendant) of Jan Leidekker

Jan Hekkert
1845-1898

Jan Leidekker
1908-1981

(1) 1937

Janna Potkamp
1907-1964

(2) > 1964

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Historical events

  • The temperature on August 21, 1908 was between 13.0 °C and 22.1 °C and averaged 17.4 °C. There was 1.4 mm of rain. There was 6.4 hours of sunshine (45%). The average windspeed was 3 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 August 17, 1905 to February 11, 1908 the cabinet De Meester, with Mr. Th. de Meester (unie-liberaal) as prime minister.
  • 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 1908: Source: Wikipedia
    • The Netherlands had about 5.7 million citizens.
    • January 28 » Members of the Portuguese Republican Party fail in their attempted coup d'état against the administrative dictatorship of Prime Minister João Franco.
    • April 1 » The Territorial Force (renamed Territorial Army in 1920) is formed as a volunteer reserve component of the British Army.
    • April 8 » Harvard University votes to establish the Harvard Business School.
    • October 13 » Margaret Travers Symons bursts into the UK parliament and became the first woman to speak there.
    • November 3 » William Howard Taft is elected the 27th President of the United States.
    • November 22 » The Congress of Manastir establishes the Albanian alphabet.
  • The temperature on July 29, 1937 was between 6.3 °C and 17.0 °C and averaged 13.5 °C. There was 0.1 mm of rain during 0.1 hours. The average windspeed was 2 Bft (weak wind) 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 July 31, 1935 to June 24, 1937 the cabinet Colijn III, with Dr. H. Colijn (ARP) as prime minister.
  • 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 year 1937: Source: Wikipedia
    • The Netherlands had about 8.6 million citizens.
    • April 1 » Spanish Civil War: Jaén, Spain is bombed by German fascist forces, supporting Francoist Nationalists.
    • April 12 » Sir Frank Whittle ground-tests the first jet engine designed to power an aircraft, at Rugby, England.
    • May 30 » Memorial Day massacre: Chicago police shoot and kill ten labor demonstrators.
    • July 6 » Spanish Civil War: Battle of Brunete: The battle begins with Spanish Republican troops going on the offensive against the Nationalists to relieve pressure on Madrid.
    • July 7 » The Marco Polo Bridge Incident provides the Imperial Japanese Army with a pretext for starting the Second Sino-Japanese War.
    • September 22 » Spanish Civil War: Peña Blanca is taken, ending the Battle of El Mazuco.
  • The temperature on January 5, 1981 was between 0.2 °C and 4.5 °C and averaged 1.8 °C. There was 0.6 mm of rain during 1.2 hours. There was 3.7 hours of sunshine (47%). 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 Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
  • In The Netherlands , there was from Friday, September 11, 1981 to Saturday, May 29, 1982 the cabinet Van Agt II, with Mr. A.A.M. van Agt (CDA) as prime minister.
  • In the year 1981: Source: Wikipedia
    • The Netherlands had about 14.2 million citizens.
    • January 19 » Iran hostage crisis: United States and Iranian officials sign an agreement to release 52 American hostages after 14 months of captivity.
    • February 24 » The 6.7 Ms Gulf of Corinth earthquake affected Central Greece with a maximum Mercalli intensity of VIII (Severe). Twenty-two people were killed, 400 were injured, and damage totaled $812million.
    • April 12 » The first launch of a Space Shuttle (Columbia) takes place: The STS-1 mission.
    • June 5 » The "Morbidity and Mortality Weekly Report" of the Centers for Disease Control and Prevention reports that five people in Los Angeles, California, have a rare form of pneumonia seen only in patients with weakened immune systems, in what turns out to be the first recognized cases of AIDS.
    • July 7 » US President Ronald Reagan appoints Sandra Day O'Connor to become the first female member of the Supreme Court of the United States.
    • December 4 » South Africa grants independence to the Ciskei "homeland" (not recognized by any government outside South Africa).
  • The temperature on January 9, 1981 was between 2.7 °C and 7.0 °C and averaged 5.1 °C. There was 11.0 mm of rain during 13.3 hours. The almost completely overcast 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, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
  • In The Netherlands , there was from Friday, September 11, 1981 to Saturday, May 29, 1982 the cabinet Van Agt II, with Mr. A.A.M. van Agt (CDA) as prime minister.
  • In the year 1981: Source: Wikipedia
    • The Netherlands had about 14.2 million citizens.
    • January 20 » Ronald Reagan is inaugurated the 40th President of the United States of America. Twenty minutes later, Iran releases 52 American hostages.
    • April 4 » Iran–Iraq War: The Islamic Republic of Iran Air Force mounts an attack on H-3 Airbase and destroys about 50 Iraqi aircraft.
    • April 14 » STS-1: The first operational Space Shuttle, Columbia completes its first test flight.
    • June 18 » The Lockheed F-117 Nighthawk, the first operational aircraft initially designed around stealth technology, makes its first flight.
    • August 12 » The IBM Personal Computer is released.
    • October 21 » Andreas Papandreou becomes Prime Minister of Greece, ending an almost 50-year-long system of power dominated by conservative forces.


Same birth/death day

Source: Wikipedia

  • 1904 » Count Basie, American pianist, composer, and bandleader († 1984)
  • 1905 » Bipin Gupta, Indian actor and producer († 1981)
  • 1906 » Friz Freleng, American animator, director, and producer († 1995)
  • 1907 » P. Jeevanandham, Indian lawyer and politician († 1963)
  • 1909 » Nikolay Bogolyubov, Russian mathematician and physicist († 1992)
  • 1912 » Toe Blake, Canadian ice hockey player and coach († 1995)

Source: Wikipedia


About the surname Leidekker


The Family tree Eilander publication was prepared by .contact the author
When copying data from this family tree, please include a reference to the origin:
P. Heres, "Family tree Eilander", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eilander/I1097396003.php : accessed March 10, 2026), "Jan Leidekker (1908-1981)".