Eijsermans family tree » Johannes Adrianus Heeffer (1923-1969)

Personal data Johannes Adrianus Heeffer 


Household of Johannes Adrianus Heeffer

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Timeline Johannes Adrianus Heeffer

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Ancestors (and descendant) of Johannes Adrianus Heeffer


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Historical events

Birthday January 17, 1923

  • The temperature on January 17, 1923 was between -2.7 °C and 1.7 °C and averaged -0.5 °C. There was 0.2 hours of sunshine (2%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north-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 September 19, 1922 to August 4, 1925 the cabinet Ruys de Beerenbrouck II, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
  • In the year 1923: Source: Wikipedia
    • The Netherlands had about 7.1 million citizens.
    • July 24 » The Treaty of Lausanne, settling the boundaries of modern Turkey, is signed in Switzerland by Greece, Bulgaria and other countries that fought in World War I.
    • August 23 » Captain Lowell Smith and Lieutenant John P. Richter performed the first mid-air refueling on De Havilland DH-4B, setting an endurance flight record of 37 hours.
    • September 1 » The Great Kantō earthquake devastates Tokyo and Yokohama, killing about 105,000 people.
    • September 9 » Mustafa Kemal Atatürk, the founder of the Republic of Turkey, founds the Republican People's Party.
    • September 29 » The British Mandate for Palestine takes effect, creating Mandatory Palestine.
    • October 29 » Turkey becomes a republic following the dissolution of the Ottoman Empire.

Day of death September 19, 1969

  • The temperature on September 19, 1969 was between 5.8 °C and 18.1 °C and averaged 11.7 °C. There was 11.0 hours of sunshine (88%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. 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 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 1969: Source: Wikipedia
    • The Netherlands had about 12.8 million citizens.
    • April 1 » The Hawker Siddeley Harrier, the first operational fighter aircraft with Vertical/Short Takeoff and Landing capabilities, enters service with the Royal Air Force.
    • June 28 » Stonewall riots begin in New York City, marking the start of the Gay Rights Movement.
    • August 4 » Vietnam War: At the apartment of French intermediary Jean Sainteny in Paris, American representative Henry Kissinger and North Vietnamese representative Xuân Thuỷ begin secret peace negotiations. The negotiations will eventually fail.
    • August 10 » A day after murdering Sharon Tate and four others, members of Charles Manson's cult kill Leno and Rosemary LaBianca.
    • October 29 » The first-ever computer-to-computer link is established on ARPANET, the precursor to the Internet.
    • November 20 » Occupation of Alcatraz: Native American activists seize control of Alcatraz Island until being ousted by the U.S. Government on June 11, 1971.


Same birth/death day

Source: Wikipedia

Source: Wikipedia


About the surname Heeffer

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The Eijsermans family tree publication was prepared by .contact the author
When copying data from this family tree, please include a reference to the origin:
J Eijsermans, "Eijsermans family tree", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eijsermans/I55944.php : accessed March 6, 2026), "Johannes Adrianus Heeffer (1923-1969)".