February 27 » Second Boer War: In South Africa, British military leaders receive an unconditional notice of surrender from Boer General Piet Cronjé at the Battle of Paardeberg.
February 28 » The Second Boer War: The 118-day "Siege of Ladysmith" is lifted.
May 17 » Second Boer War: British troops relieve Mafeking.
September 17 » Philippine–American War: Filipinos under Juan Cailles defeat Americans under Colonel Benjamin F. Cheatham Jr. at Mabitac.
October 19 » Max Planck discovers Planck's law of black-body radiation.
October 25 » The United Kingdom annexes the Transvaal.
Day of marriage July 3, 1930
The temperature on July 3, 1930 was between 16.6 °C and 25.9 °C and averaged 19.4 °C. There was 4.6 mm of rain during 1.0 hours. There was 8.3 hours of sunshine (50%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west. 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.
March 13 » The news of the discovery of Pluto is announced by Lowell Observatory.
March 31 » The Motion Picture Production Code is instituted, imposing strict guidelines on the treatment of sex, crime, religion and violence in film, in the U.S., for the next thirty-eight years.
April 22 » The United Kingdom, Japan and the United States sign the London Naval Treaty regulating submarine warfare and limiting shipbuilding.
June 1 » The Deccan Queen is introduced as first intercity train between Bombay VT (Now Mumbai CST) and Poona (Pune) to run on electric locomotives.
June 17 » U.S. President Herbert Hoover signs the Smoot–Hawley Tariff Act into law.
August 29 » The last 36 remaining inhabitants of St Kilda are voluntarily evacuated to other parts of Scotland.
Day of death August 19, 1957
The temperature on August 19, 1957 was between 11.8 °C and 20.0 °C and averaged 16.0 °C. There was 0.1 mm of rain during 0.3 hours. There was 7.6 hours of sunshine (52%). The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
January 23 » American inventor Walter Frederick Morrison sells the rights to his flying disc to the Wham-O toy company, which later renames it the "Frisbee".
July 6 » Althea Gibson wins the Wimbledon championships, becoming the first black athlete to do so.
August 1 » The United States and Canada form the North American Aerospace Defense Command (NORAD).
September 24 » President Eisenhower sends the 101st Airborne Division to Little Rock, Arkansas, to enforce desegregation.
October 4 » Sputnik 1 becomes the first artificial satellite to orbit the Earth.
November 1 » The Mackinac Bridge, the world's longest suspension bridge between anchorages at the time, opens to traffic connecting Michigan's upper and lower peninsulas.
When copying data from this family tree, please include a reference to the origin: Cor van der Linden, "Kaizer/van der Linden family tree", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-kaizer/I331.php : accessed March 14, 2026), "Joseph Johannes Letschert (1900-1957)".
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.