The temperature on November 22, 1915 was between -4.4 °C and 1.0 °C and averaged -1.9 °C. There was 0.3 mm of rain. There was 0.7 hours of sunshine (8%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. 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.
April 5 » Boxing challenger Jess Willard knocks out Jack Johnson in Havana, Cuba to become the Heavyweight Champion of the World.
June 5 » Denmark amends its constitution to allow women's suffrage.
June 9 » William Jennings Bryan resigns as Woodrow Wilson's Secretary of State over a disagreement regarding the United States' handling of the sinking of the RMSLusitania.
July 16 » Henry James becomes a British citizen to highlight his commitment to Britain during the first World War.
August 4 » World War I: The German 12th Army occupies Warsaw during the Gorlice–Tarnów Offensive and the Great Retreat of 1915.
August 15 » A story in New York World newspaper reveals that the Imperial German government had purchased excess phenol from Thomas Edison that could be used to make explosives for the war effort and diverted it to Bayer for aspirin production.
Day of marriage August 4, 1939
The temperature on August 4, 1939 was between 9.9 °C and 20.6 °C and averaged 15.0 °C. There was 14.9 mm of rain during 3.3 hours. There was 3.5 hours of sunshine (23%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east-northeast. Source: KNMI
In The Netherlands , there was from June 24, 1937 to July 25, 1939 the cabinet Colijn IV, with Dr. H. Colijn (ARP) as prime minister.
In The Netherlands , there was from July 25, 1939 to August 10, 1939 the cabinet Colijn V, with Dr. H. Colijn (ARP) as prime minister.
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.
January 13 » The Black Friday bushfires burn 20,000 square kilometers of land in Australia, claiming the lives of 71 people.
May 21 » The Canadian National War Memorial is unveiled by King George VI and Queen Elizabeth in Ottawa, Ontario, Canada.
September 1 » World War II: Nazi Germany and Slovakia invade Poland, beginning the European phase of World War II.
September 4 » World War II: William J. Murphy commands the first Royal Air Force attack on Germany.
October 14 » World War II: The German submarineU-47 sinks the British battleship HMSRoyal Oak within her harbour at Scapa Flow, Scotland.
December 27 » The 7.8 Mw Erzincan earthquake shakes eastern Turkey with a maximum Mercalli intensity of XI (Extreme). At least 32,700 people were killed.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I282256.php : accessed February 18, 2026), "Jan Winkelman (1915-< 2014)".
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