The temperature on April 18, 1940 was between 2.6 °C and 13.0 °C and averaged 8.6 °C. There was 7.1 mm of rain during 1.4 hours. There was 3.0 hours of sunshine (21%). 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.
January 29 » Three trains on the Nishinari Line; present Sakurajima Line, in Osaka, Japan, collide and explode while approaching Ajikawaguchi Station. One hundred and eighty-one people are killed.
April 14 » World War II: Royal Marines land in Namsos, Norway in preparation for a larger force to arrive two days later.
June 25 » World War II: The French armistice with Germany comes into effect.
July 25 » General Henri Guisan orders the Swiss Army to resist German invasion and makes surrender illegal.
September 12 » An explosion at the Hercules Powder Company plant in Kenvil, New Jersey kills 51 people and injures over 200.
October 31 » World War II: The Battle of Britain ends: The United Kingdom prevents a possible German invasion.
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/I6549.php : accessed January 26, 2026), "Sybrigje de Jong (1917-)".
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