The temperature on May 22, 1909 was between 11.2 °C and 26.3 °C and averaged 18.0 °C. There was 12.3 hours of sunshine (77%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
February 12 » New Zealand's worst maritime disaster of the 20th century happens when the SSPenguin, an inter-island ferry, sinks and explodes at the entrance to Wellington Harbour.
February 15 » The Flores Theater fire in Acapulco, Mexico kills 250.
February 26 » Kinemacolor, the first successful color motion picture process, is first shown to the general public at the Palace Theatre in London.
March 31 » Serbia formally withdraws its opposition to Austro-Hungarian actions in the Bosnian Crisis.
April 6 » Robert Peary and Matthew Henson become the first people to reach the North Pole; Peary's claim has been disputed because of failings in his navigational ability.
November 18 » Two United States warships are sent to Nicaragua after 500 revolutionaries (including two Americans) are executed by order of José Santos Zelaya.
Day of marriage June 9, 1928
The temperature on June 9, 1928 was between 8.5 °C and 19.3 °C and averaged 15.0 °C. There was 3.0 mm of rain. There was 1.3 hours of sunshine (8%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
March 12 » In California, the St. Francis Dam fails; the resulting floods kill 431 people.
March 21 » Charles Lindbergh is presented with the Medal of Honor for the first solo trans-Atlantic flight.
April 14 » The Bremen, a German Junkers W 33 type aircraft, reaches Greenly Island, Canada - the first successful transatlantic aeroplane flight from east to west.
October 28 » The "Indonesia Raya", now the national anthem, is first played during the Second Indonesian Youth Congress.
November 1 » The Law on the Adoption and Implementation of the Turkish Alphabet, replaces the Arabic alphabet with the Latin alphabet.
November 12 » SSVestris sinks approximately 200 miles (320km) off Hampton Roads, Virginia, killing at least 110 passengers, mostly women and children who die after the vessel is abandoned.
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/I138479.php : accessed February 19, 2026), "Zwaantje van der Werff (1909-)".
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