The temperature on March 31, 1952 was between -0.9 °C and 2.1 °C and averaged 0.4 °C. There was 0.2 mm of rain during 1.0 hours. The almost completely overcast was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
February 15 » King George VI of the United Kingdom is buried in St George's Chapel, Windsor Castle.
March 20 » The US Senate ratifies the Security Treaty Between the United States and Japan.
April 15 » First flight of the Boeing B-52 Stratofortress.
June 17 » Guatemala passes Decree 900, ordering the redistribution of uncultivated land.
September 6 » A prototype aircraft crashes at the Farnborough Airshow in Hampshire, England, killing 29 spectators and the two on board.
December 5 » Beginning of the Great Smog in London. A cold fog combines with air pollution and brings the city to a standstill for four days. Later, a Ministry of Health report estimates 4,000 fatalities as a result of it.
When copying data from this family tree, please include a reference to the origin: Marjo van Leeuwen, "Family tree Van Leeuwen-Van der Speck en vele anderen", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-leeuwen-van-der-speck/R2436.php : accessed May 11, 2025), "Johannes Antonius van Elferen (1922-1952)".
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