The temperature on March 27, 1917 was between -2.5 °C and 5.8 °C and averaged 2.3 °C. There was 8.6 hours of sunshine (68%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north. 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 5 » The current constitution of Mexico is adopted, establishing a federal republic with powers separated into independent executive, legislative, and judicial branches.
March 4 » Jeannette Rankin of Montana becomes the first female member of the United States House of Representatives.
March 15 » Tsar Nicholas II of Russia abdicates the Russian throne ending the 304-year Romanov dynasty.
June 13 » World War I: The deadliest German air raid on London of the war is carried out by Gotha G.IV bombers and results in 162 deaths, including 46 children, and 432 injuries.
July 31 » World War I: The Battle of Passchendaele begins near Ypres in West Flanders, Belgium.
November 5 » October Revolution: Lenin calls for the October Revolution.
Day of marriage December 11, 1940
The temperature on December 11, 1940 was between 0.7 °C and 4.4 °C and averaged 2.7 °C. There was 6.8 mm of rain during 5.6 hours. There was -0.1 hours of sunshine (0%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. 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 8 » World War II: Britain introduces food rationing.
May 20 » The Holocaust: The first prisoners arrive at a new concentration camp at Auschwitz.
August 8 » The "Aufbau Ost" directive is signed by Wilhelm Keitel.
October 17 » The body of Communist propagandist Willi Münzenberg found in South France, starting a never-resolved mystery.
November 9 » Warsaw is awarded the Virtuti Militari.
November 20 » World War II: Hungary becomes a signatory of the Tripartite Pact, officially joining the Axis powers.
Day of death October 8, 2007
The temperature on October 8, 2007 was between 3.7 °C and 15.7 °C and averaged 10.3 °C. There was 2.9 hours of sunshine (26%). The heavily clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
In The Netherlands , there was from Friday, July 7, 2006 to Thursday, February 22, 2007 the cabinet Balkenende III, with Mr.dr. J.P. Balkenende (CDA) as prime minister.
In The Netherlands , there was from Thursday, February 22, 2007 to Thursday, October 14, 2010 the cabinet Balkenende IV, with Mr.dr. J.P. Balkenende (CDA) as prime minister.
When copying data from this family tree, please include a reference to the origin: Hendrik de Graaf, "Family tree Plugboer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-plugboer/I4313.php : accessed January 28, 2026), "Wilhelmina Maria Keijsper (1917-2007)".
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