The temperature on February 9, 1906 was between -2.2 °C and 2.4 °C and averaged 0.5 °C. There was 1.4 mm of rain. There was 1.4 hours of sunshine (15%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
In The Netherlands , there was from August 17, 1905 to February 11, 1908 the cabinet De Meester, with Mr. Th. de Meester (unie-liberaal) as prime minister.
August 16 » The 8.2 Mw Valparaíso earthquake hits central Chile, killing 3,882 people.
September 1 » The International Federation of Intellectual Property Attorneys is established.
September 13 » The Santos-Dumont 14-bis makes a short hop, the first flight of a fixed-wing aircraft in Europe.
October 16 » The Wilhelm Voigt fools the city hall of Köpenick and several soldiers by impersonating a Prussian officer.
December 10 » U.S. President Theodore Roosevelt wins the Nobel Peace Prize for his role in the mediation of the Russo-Japanese War, becoming the first American to win a Nobel Prize.
December 15 » The London Underground's Great Northern, Piccadilly and Brompton Railway opens.
Day of marriage April 12, 1935
The temperature on April 12, 1935 was between 1.5 °C and 10.6 °C and averaged 6.4 °C. There was 0.1 mm of rain. There was 0.4 hours of sunshine (3%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
April 14 » The Black Sunday dust storm, considered one of the worst storms of the Dust Bowl, swept across the Oklahoma and Texas panhandles and neighboring areas.
May 29 » First flight of the Messerschmitt Bf 109 fighter aeroplane.
July 24 » The Dust Bowl heat wave reaches its peak, sending temperatures to 109°F (43°C) in Chicago and 104°F (40°C) in Milwaukee.
July 28 » First flight of the Boeing B-17 Flying Fortress.
August 31 » In an attempt to stay out of the growing tensions concerning Germany and Japan, the United States passes the first of its Neutrality Acts.
December 9 » The Downtown Athletic Club Trophy, later renamed the Heisman Trophy, is awarded for the first time. The winner is halfback Jay Berwanger of the University of Chicago.
When copying data from this family tree, please include a reference to the origin: Sim Mostert, "Genealogy Pot en Smit", database, Genealogy Online (https://www.genealogieonline.nl/genealogie_pot_smit/I5885.php : accessed February 10, 2026), "GERTRUD HEDWIG MARGARETHE GRÜNWALD (1906-)".
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