The temperature on February 6, 1911 was between -2.6 °C and 6.8 °C and averaged 3.0 °C. There was 1.5 hours of sunshine (16%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
May 31 » The President of Mexico Porfirio Díaz flees the country during the Mexican Revolution.
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.
August 1 » Harriet Quimby takes her pilot's test and becomes the first U.S. woman to earn an Aero Club of America aviator's certificate.
September 20 » The White Star Line's RMSOlympic collides with the British warship HMSHawke.
October 13 » Prince Arthur, Duke of Connaught and Strathearn, becomes the first Governor General of Canada of royal descent.
Day of marriage April 30, 1935
The temperature on April 30, 1935 was between 3.8 °C and 11.7 °C and averaged 7.9 °C. There was 4.3 hours of sunshine (29%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
February 12 » USSMacon, one of the two largest helium-filled airships ever created, crashes into the Pacific Ocean off the coast of California and sinks.
June 18 » Police in Vancouver, British Columbia, Canada, clash with striking longshoremen, resulting in a total of 60 injuries and 24 arrests.
July 24 » The Dust Bowl heat wave reaches its peak, sending temperatures to 109°F (43°C) in Chicago and 104°F (40°C) in Milwaukee.
September 3 » Sir Malcolm Campbell reaches a speed of 304.331 miles per hour on the Bonneville Salt Flats in Utah, becoming the first person to drive an automobile over 300mph.
October 10 » In Greece, a coup d'état ends the Second Hellenic Republic.
November 3 » George II of Greece regains his throne through a popular, though possibly fixed, plebiscite.
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/I84068.php : accessed October 11, 2026), "Klara Boerma (1911-)".
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