February 27 » The British Labour Party is founded.
June 14 » The second German Naval Law calls for the Imperial German Navy to be doubled in size, resulting in an Anglo-German naval arms race.
June 17 » Boxer Rebellion: Western Allied and Japanese forces capture the Taku Forts in Tianjin, China.
July 9 » The Federation of Australia is given royal assent.
August 14 » The Eight-Nation Alliance occupies Beijing, China, in a campaign to end the bloody Boxer Rebellion in China.
December 14 » Quantum mechanics: Max Planck presents a theoretical derivation of his black-body radiation law.
Day of marriage June 30, 1928
The temperature on June 30, 1928 was between 9.9 °C and 18.2 °C and averaged 14.7 °C. There was 12.2 hours of sunshine (73%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
March 21 » Charles Lindbergh is presented with the Medal of Honor for the first solo trans-Atlantic flight.
April 12 » The Bremen, a German Junkers W 33 type aircraft, takes off for the first successful transatlantic aeroplane flight from east to west.
June 4 » The President of the Republic of China, Zhang Zuolin, is assassinated by Japanese agents.
October 1 » The Soviet Union introduces its first five-year plan.
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.
December 13 » George Gershwin's An American in Paris is first performed.
Day of death March 22, 1949
The temperature on March 22, 1949 was between -1.2 °C and 10.3 °C and averaged 4.6 °C. There was 0.2 mm of rain during 0.3 hours. There was 1.8 hours of sunshine (15%). The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
From August 7, 1948 till March 15, 1951 the Netherlands had a cabinet Drees - Van Schaik with the prime ministers Dr. W. Drees (PvdA) and Mr. J.R.H. van Schaik (KVP).
When copying data from this family tree, please include a reference to the origin: Iris Siegerist, "Family tree Siegerist", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-siegerist/R12.php : accessed February 5, 2026), "Johannes Dirk Cornelis/Jan Jordans (1900-1949)".
Copy warning
Genealogical publications are copyright protected. Although data is often retrieved from public archives, the searching, interpreting, collecting, selecting and sorting of the data results in a unique product. Copyright protected work may not simply be copied or republished.
Please stick to the following rules
Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
Do not use this data until you have checked it, preferably at the source (the archives).
State from whom you have copied the data and ideally also his/her original source.