The temperature on July 14, 1915 was between 11.8 °C and 19.4 °C and averaged 15.2 °C. There was 2.5 mm of rain. There was 6.9 hours of sunshine (42%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. 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.
January 24 » World War I: British Grand Fleet battle cruisers under Vice-Admiral Sir David Beatty engage Rear-Admiral Franz von Hipper's battle cruisers in the Battle of Dogger Bank.
March 20 » Albert Einstein publishes his general theory of relativity.
June 21 » The U.S. Supreme Court hands down its decision in Guinn v. United States 238 US 347 1915, striking down Oklahoma grandfather clause legislation which had the effect of denying the right to vote to blacks.
August 29 » US Navy salvage divers raise F-4, the first U.S. submarine sunk in an accident.
September 25 » World War I: The Second Battle of Champagne begins.
November 25 » Albert Einstein presents the field equations of general relativity to the Prussian Academy of Sciences.
Day of marriage October 7, 1942
The temperature on October 7, 1942 was between 9.6 °C and 21.1 °C and averaged 14.6 °C. There was 1.3 mm of rain during 1.7 hours. There was 4.6 hours of sunshine (41%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
April 5 » World War II: The Imperial Japanese Navy launches a carrier-based air attack on Colombo, Ceylon during the Indian Ocean raid. Port and civilian facilities are damaged and the Royal Navy cruisers HMSCornwall and HMSDorsetshire are sunk southwest of the island.
May 10 » World War II: The Thai Phayap Army invades the Shan States during the Burma Campaign.
June 11 » Free French Forces retreat from Bir Hakeim after having successfully delayed the Axis advance.
June 20 » The Holocaust: Kazimierz Piechowski and three others, dressed as members of the SS-Totenkopfverbände, steal an SS staff car and escape from the Auschwitz concentration camp.
July 23 » World War II: The German offensives Operation Edelweiss and Operation Braunschweig begin.
November 19 » World War II: Battle of Stalingrad: Soviet Union forces under General Georgy Zhukov launch the Operation Uranus counterattacks at Stalingrad, turning the tide of the battle in the USSR's favor.
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/I21792.php : accessed February 3, 2026), "Hendrik Jonker (1915-)".
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