The temperature on August 27, 1916 was between 14.3 °C and 20.2 °C and averaged 16.7 °C. There was 7.8 mm of rain. There was 7.4 hours of sunshine (53%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
February 21 » World War I: In France, the Battle of Verdun begins.
June 3 » The National Defense Act is signed into law, increasing the size of the United States National Guard by 450,000 men.
July 15 » In Seattle, Washington, William Boeing and George Conrad Westervelt incorporate Pacific Aero Products (later renamed Boeing).
September 3 » World War I: Leefe Robinson destroys the German airship Schütte-Lanz SL 11 over Cuffley, north of London; the first German airship to be shot down on British soil.
November 18 » World War I: First Battle of the Somme: In France, British Expeditionary Force commander Douglas Haig calls off the battle which started on July 1, 1916.
December 18 » World War I: The Battle of Verdun ends when German forces under Chief of staff Erich von Falkenhayn are defeated by the French, and suffer 337,000 casualties.
Day of marriage April 30, 1940
The temperature on April 30, 1940 was between 7.6 °C and 18.7 °C and averaged 13.2 °C. There was 11.0 hours of sunshine (74%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
In The Netherlands , there was from August 10, 1939 to September 3, 1940 the cabinet De Geer II, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
In The Netherlands , there was from September 3, 1940 to July 27, 1941 the cabinet Gerbrandy I, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I211624.php : accessed October 16, 2026), "Jan Kornelis Helenius (1916-)".
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