The temperature on September 13, 1915 was between 7.5 °C and 22.7 °C and averaged 15.8 °C. There was 10.7 hours of sunshine (83%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-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.
January 13 » The 6.7 Mw Avezzano earthquake shakes the Province of L'Aquila in Italy with a maximum Mercalli intensity of XI (Extreme), killing between 29,978–32,610.
May 24 » World War I: Italy declares war on Austria-Hungary, joining the conflict on the side of the Allies.
July 16 » At Treasure Island on the Delaware River in the United States, the First Order of the Arrow ceremony takes place and the Order of the Arrow is founded to honor American Boy Scouts who best exemplify the Scout Oath and Law.
July 28 » The United States begins a 19-year occupation of Haiti.
September 30 » World War I: Radoje Ljutovac becomes the first soldier in history to shoot down an enemy aircraft with ground-to-air fire.
October 13 » First World War: The Battle of the Hohenzollern Redoubt marks the end of the Battle of Loos.
Day of marriage May 15, 1937
The temperature on May 15, 1937 was between 10.2 °C and 16.3 °C and averaged 12.5 °C. There was 12.5 mm of rain during 9.2 hours. There was 0.7 hours of sunshine (4%). The average windspeed was 2 Bft (weak wind) and was prevailing from the northeast. Source: KNMI
January 15 » Spanish Civil War: Nationalists and Republican both withdraw after suffering heavy losses, ending the Second Battle of the Corunna Road.
March 18 » The New London School explosion in New London, Texas, kills 300 people, mostly children.
May 12 » The Duke and Duchess of York are crowned as King George VI and Queen Elizabeth of the United Kingdom of Great Britain and Northern Ireland in Westminster Abbey.
May 30 » Memorial Day massacre: Chicago police shoot and kill ten labor demonstrators.
September 22 » Spanish Civil War: Peña Blanca is taken, ending the Battle of El Mazuco.
December 22 » The Lincoln Tunnel opens to traffic in New York City.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I122344.php : accessed October 25, 2026), "Janke Dalstra (1915-)".
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