April 18 » The Greco-Turkish War is declared between Greece and the Ottoman Empire.
April 30 » J. J. Thomson of the Cavendish Laboratory announces his discovery of the electron as a subatomic particle, over 1,800 times smaller than a proton (in the atomic nucleus), at a lecture at the Royal Institution in London.
June 16 » A treaty annexing the Republic of Hawaii to the United States is signed; the Republic would not be dissolved until a year later.
September 1 » The Tremont Street Subway in Boston opens, becoming the first underground rapid transit system in North America.
December 9 » Activist Marguerite Durand founds the feminist daily newspaper La Fronde in Paris.
December 30 » The British Colony of Natal annexes Zululand.
Day of death April 29, 1952
The temperature on April 29, 1952 was between 0.6 °C and 15.3 °C and averaged 8.4 °C. There was 0.1 mm of rain. There was 10.0 hours of sunshine (68%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the east-northeast. Source: KNMI
January 26 » Black Saturday in Egypt: rioters burn Cairo's central business district, targeting British and upper-class Egyptian businesses.
March 15 » In Cilaos, Réunion, 1870mm (73inches) of rain falls in a 24-hour period, setting a new world record (March 15 through March 16).
June 13 » Catalina affair: A Swedish Douglas DC-3 is shot down by a Soviet MiG-15 fighter.
September 8 » The Canadian Broadcasting Corporation makes its first televised broadcast on the second escape of the Boyd Gang.
November 25 » Korean War: After 42 days of fighting, the Battle of Triangle Hill ends with Chinese victory, American and South Korean units abandon their attempt to capture the "Iron Triangle".
December 1 » The New York Daily News reports the news of Christine Jorgensen, the first notable case of sex reassignment surgery.
When copying data from this family tree, please include a reference to the origin: Louis Kramer, "Kramer Family Tree", database, Genealogy Online (https://www.genealogieonline.nl/kramer_stamboom/I599281.php : accessed March 13, 2026), "Hedzer Sliep (1897-1952)".
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.