The temperature on October 4, 1911 was between 6.0 °C and 14.8 °C and averaged 9.9 °C. There was 0.7 mm of rain. There was 4.9 hours of sunshine (43%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-southeast. Source: KNMI
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
May 21 » President of Mexico Porfirio Díaz and the revolutionary Francisco Madero sign the Treaty of Ciudad Juárez to put an end to the fighting between the forces of both men, concluding the initial phase of the Mexican Revolution.
July 7 » The United States, UK, Japan, and Russia sign the North Pacific Fur Seal Convention of 1911 banning open-water seal hunting, the first international treaty to address wildlife preservation issues.
August 14 » United States Senate leaders agree to rotate the office of President pro tempore of the Senate among leading candidates to fill the vacancy left by William P. Frye's death.
September 24 » His Majesty's Airship No. 1, Britain's first rigid airship, is wrecked by strong winds before her maiden flight at Barrow-in-Furness.
October 13 » Prince Arthur, Duke of Connaught and Strathearn, becomes the first Governor General of Canada of royal descent.
Day of marriage June 7, 1933
The temperature on June 7, 1933 was between 13.4 °C and 24.7 °C and averaged 18.9 °C. There was 14.5 hours of sunshine (87%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
In The Netherlands , there was from May 26, 1933 to July 31, 1935 the cabinet Colijn II, with Dr. H. Colijn (ARP) as prime minister.
January 24 » The 20th Amendment to the United States Constitution is ratified, changing the beginning and end of terms for all elected federal offices.
March 22 » Cullen–Harrison Act: President Franklin Roosevelt signs an amendment to the Volstead Act, legalizing the manufacture and sale of "3.2 beer" (3.2% alcohol by weight, approximately 4% alcohol by volume) and light wines.
April 24 » Nazi Germany begins its persecution of Jehovah's Witnesses by shutting down the Watch Tower Society office in Magdeburg.
August 14 » Loggers cause a forest fire in the Coast Range of Oregon, later known as the first forest fire of the Tillamook Burn; it is not fully extinguished until September 5, after destroying 240,000 acres (970km).
August 24 » The Crescent Limited train derails in Washington, D.C., after the bridge it is crossing is washed out by the 1933 Chesapeake–Potomac hurricane.
September 26 » As gangster Machine Gun Kelly surrenders to the FBI, he shouts out, "Don't shoot, G-Men!", which becomes a nickname for FBI agents.
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/I131591.php : accessed October 25, 2026), "Jetske Willemien Kamminga (1911-)".
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