The temperature on August 7, 1911 was between 11.9 °C and 23.6 °C and averaged 18.0 °C. There was 10.9 hours of sunshine (72%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
January 30 » The destroyer USSTerry makes the first airplane rescue at sea saving the life of Douglas McCurdy ten miles from Havana, Cuba.
February 18 » The first official flight with airmail takes place from Allahabad, United Provinces, British India (now India), when Henri Pequet, a 23-year-old pilot, delivers 6,500 letters to Naini, about 10 kilometres (6.2mi) away.
May 23 » The New York Public Library is dedicated.
June 16 » IBM founded as the Computing-Tabulating-Recording Company in Endicott, New York.
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.
September 1 » The armored cruiser Georgios Averof is commissioned into the Greek Navy. It now serves as a museum ship.
Day of marriage April 25, 1940
The temperature on April 25, 1940 was between 9.0 °C and 12.3 °C and averaged 10.6 °C. There was 16.9 mm of rain during 4.7 hours. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
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.
In The Netherlands , there was from September 3, 1940 to July 27, 1941 the cabinet Gerbrandy I, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
January 8 » World War II: Britain introduces food rationing.
June 14 » World War II: The German occupation of Paris begins.
June 18 » Appeal of 18 June by Charles de Gaulle.
September 12 » An explosion at the Hercules Powder Company plant in Kenvil, New Jersey kills 51 people and injures over 200.
November 8 » Greco-Italian War: The Italian invasion of Greece fails as outnumbered Greek units repulse the Italians in the Battle of Elaia–Kalamas.
November 20 » World War II: Hungary becomes a signatory of the Tripartite Pact, officially joining the Axis powers.
Day of death February 11, 1954
The temperature on February 11, 1954 was between 0.7 °C and 4.4 °C and averaged 2.4 °C. There was 1.0 mm of rain during 2.1 hours. The almost completely overcast was. The average windspeed was 2 Bft (weak wind) and was prevailing from the east. Source: KNMI
April 1 » United States President Dwight D. Eisenhower authorizes the creation of the United States Air Force Academy in Colorado.
August 10 » At Massena, New York, the groundbreaking ceremony for the Saint Lawrence Seaway is held.
September 17 » The novel Lord of the Flies by William Golding is first published.
October 15 » Hurricane Hazel devastates the eastern seaboard of North America, killing 95 and causing massive floods as far north as Toronto.
November 27 » Alger Hiss is released from prison after serving 44 months for perjury.
December 2 » Cold War: The United States Senate votes 65 to 22 to censure Joseph McCarthy for "conduct that tends to bring the Senate into dishonor and disrepute".
When copying data from this family tree, please include a reference to the origin: Dirk Zwinderman, "Family tree Zwinderman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-zwinderman/I2803.php : accessed January 22, 2026), "Eijalina Okkiena Koning (1911-1954)".
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