Family tree Plugboer » Jacobus de Graaf (1911-1969)

Personal data Jacobus de Graaf 


Household of Jacobus de Graaf

He is married to Adriana Dekker.

They got married

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Historical events

Birthday May 26, 1911

  • The temperature on May 26, 1911 was between 10.5 °C and 21.1 °C and averaged 16.3 °C. There was 4.1 hours of sunshine (25%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-southeast. 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 February 12, 1908 to August 29, 1913 the cabinet Heemskerk, with Mr. Th. Heemskerk (AR) as prime minister.
  • In the year 1911: Source: Wikipedia
    • The Netherlands had about 6.0 million citizens.
    • January 21 » The first Monte Carlo Rally takes place.
    • April 29 » Tsinghua University, one of mainland China's leading universities, is founded.
    • May 23 » The New York Public Library is dedicated.
    • August 21 » The Mona Lisa is stolen by Vincenzo Peruggia, a Louvre employee.
    • October 24 » Orville Wright remains in the air nine minutes and 45 seconds in a glider at Kill Devil Hills, North Carolina.
    • November 5 » After declaring war on the Ottoman Empire on September 29, 1911, Italy annexes Tripoli and Cyrenaica.

Day of death December 24, 1969

  • The temperature on December 24, 1969 was between 1.0 °C and 3.9 °C and averaged 2.4 °C. There was 1.9 mm of rain during 3.3 hours. The almost completely overcast was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southeast. 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.
    • March 19 » The 385-metre-tall (1,263ft) TV-mast at Emley Moor transmitting station, United Kingdom, collapses due to ice build-up.
    • May 17 » Venera program: Soviet Venera 6 begins its descent into the atmosphere of Venus, sending back atmospheric data before being crushed by pressure.
    • June 22 » The Cuyahoga River catches fire in Cleveland, Ohio, drawing national attention to water pollution, and spurring the passing of the Clean Water Act and the creation of the Environmental Protection Agency.
    • November 24 » Apollo program: The Apollo 12 command module splashes down safely in the Pacific Ocean, ending the second manned mission to land on the Moon.
    • December 4 » Black Panther Party members Fred Hampton and Mark Clark are shot and killed during a raid by 14 Chicago police officers.
    • December 24 » Nigerian troops capture Umuahia, the Biafran capital.


Same birth/death day

Source: Wikipedia

Source: Wikipedia


About the surname De Graaf

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The Family tree Plugboer publication was prepared by .contact the author
When copying data from this family tree, please include a reference to the origin:
Hendrik de Graaf, "Family tree Plugboer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-plugboer/I2842.php : accessed February 7, 2026), "Jacobus de Graaf (1911-1969)".