Family tree Jacobs » Pieter de Graaff (1895-????)

Personal data Pieter de Graaff 


Household of Pieter de Graaff

He is married to Maria Adolphina van Buren.

They got married on September 21, 1921 at Rotterdam, he was 26 years old.

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Timeline Pieter de Graaff

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Ancestors (and descendant) of Pieter de Graaff


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Historical events

Day of marriage September 21, 1921

  • The temperature on September 21, 1921 was between 8.6 °C and 23.3 °C and averaged 14.8 °C. There was 6.8 hours of sunshine (55%). 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 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 1921: Source: Wikipedia
    • The Netherlands had about 6.9 million citizens.
    • February 22 » After Russian forces under Baron Roman von Ungern-Sternberg drive the Chinese out, the Bogd Khan is reinstalled as the emperor of Mongolia.
    • March 15 » Talaat Pasha, former Grand Vizir of the Ottoman Empire and chief architect of the Armenian Genocide is assassinated in Berlin by a 23-year-old Armenian, Soghomon Tehlirian.
    • March 31 » The Royal Australian Air Force is formed.
    • June 12 » Mikhail Tukhachevsky orders the use of chemical weapons against the Tambov Rebellion, bringing an end to the peasant uprising.
    • July 11 » A truce in the Irish War of Independence comes into effect.
    • September 21 » A storage silo in Oppau, Germany, explodes, killing 500–600 people.

About the surname De Graaff


The Family tree Jacobs publication was prepared by .contact the author
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/I91624.php : accessed May 12, 2025), "Pieter de Graaff (1895-????)".