The temperature on July 27, 1917 was between 12.9 °C and 21.7 °C and averaged 16.7 °C. There was 5.0 hours of sunshine (32%). The average windspeed was 2 Bft (weak wind) and was prevailing from the 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.
May 21 » The Imperial War Graves Commission is established through royal charter to mark, record, and maintain the graves and places of commemoration of the British Empire's military forces.
November 2 » The Military Revolutionary Committee of the Petrograd Soviet, in charge of preparation and carrying out the Russian Revolution, holds its first meeting.
December 7 » World War I: The United States declares war on Austria-Hungary.
Day of marriage April 7, 1943
The temperature on April 7, 1943 was between 0.6 °C and 11.9 °C and averaged 5.3 °C. There was 9.7 mm of rain during 7.1 hours. There was 1.0 hours of sunshine (8%). The average windspeed was 6 Bft (strong wind) and was prevailing from the west-northwest. 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 7 » The Holocaust in Ukraine: In Terebovlia, Germans order 1,100 Jews to undress and march through the city to the nearby village of Plebanivka, where they are shot and buried in ditches.
July 24 » World War II: Operation Gomorrah begins: British and Canadian aeroplanes bomb Hamburg by night, and American planes bomb the city by day. By the end of the operation in November, 9,000 tons of explosives will have killed more than 30,000 people and destroyed 280,000 buildings.
September 7 » World War II: The German 17th Army begins its evacuation of the Kuban bridgehead (Taman Peninsula) in southern Russia and moves across the Strait of Kerch to the Crimea.
September 23 » World War II: The Nazi puppet state known as the Italian Social Republic is founded.
September 30 » The United States Merchant Marine Academy is dedicated by President Roosevelt.
December 5 » World War II: Allied air forces begin attacking Germany's secret weapons bases in Operation Crossbow.
When copying data from this family tree, please include a reference to the origin: Arthur Storm, "Family tree Storm", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-storm/I2585.php : accessed February 15, 2026), "Wilhelmina Barbara Keller (1917-)".
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