Haags Gemeentearchief te Den Haag, BS Huwelijk Ambtenaar van de burgerlijke stand van de gemeente 's-Gravenhage, 's-Gravenhage, archief 335-01, inventarisnummer 923, 01-06-1921, Huwelijksakten Den Haag, aktenummer A780
The temperature on June 1, 1921 was between 9.2 °C and 23.9 °C and averaged 17.0 °C. There was 12.8 hours of sunshine (78%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
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.
January 9 » Greco-Turkish War: The First Battle of İnönü, the first battle of the war, begins near Eskişehir in Anatolia.
March 21 » The New Economic Policy is implemented by the Bolshevik Party in response to the economic failure as a result of war communism.
April 2 » The Autonomous Government of Khorasan, a military government encompassing the modern state of Iran, is established.
June 28 » Serbian King Alexander I proclaims the new constitution of the Kingdom of Serbs, Croats and Slovenes, known thereafter as the Vidovdan Constitution.
July 2 » World War I: U.S. President Warren G. Harding signs the Knox–Porter Resolution formally ending the war between the United States and Germany.
October 18 » The Crimean Autonomous Soviet Socialist Republic is formed as part of the Russian Soviet Federative Socialist Republic.
When copying data from this family tree, please include a reference to the origin: Gert Jonker, "Family tree Jonker", database, Genealogy Online (https://www.genealogieonline.nl/jonker_stamboom/I5712.php : accessed February 15, 2026), "Maria Silivia Jonker (1894-????)".
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