The temperature on February 9, 1919 was between -11.9 °C and -0.6 °C and averaged -6.7 °C. There was 5.7 hours of sunshine (60%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east-northeast. Source: KNMI
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 15 » Rosa Luxemburg and Karl Liebknecht, two of the most prominent socialists in Germany, are tortured and murdered by the Freikorps at the end of the Spartacist uprising.
June 15 » John Alcock and Arthur Brown complete the first nonstop transatlantic flight when they reach Clifden, County Galway, Ireland.
June 21 » Admiral Ludwig von Reuter scuttles the German fleet at Scapa Flow, Orkney. The nine sailors killed are the last casualties of World War I.
June 21 » The Royal Canadian Mounted Police fire a volley into a crowd of unemployed war veterans, killing two, during the Winnipeg general strike.
July 6 » The British dirigible R34 lands in New York, completing the first crossing of the Atlantic Ocean by an airship.
September 22 » The steel strike of 1919, led by the Amalgamated Association of Iron and Steel Workers, begins in Pennsylvania before spreading across the United States.
When copying data from this family tree, please include a reference to the origin: Leo Witkamp, "Family tree Witkamp", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-witkamp/I0243.php : accessed January 29, 2026), "Maria Theresia Geertruida de (Maria Theresia Geertruida) Graaff (-1919)".
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