The temperature on September 17, 1952 was between 1.2 °C and 16.0 °C and averaged 9.3 °C. There was 1.8 mm of rain during 4.6 hours. There was 5.3 hours of sunshine (42%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
April 15 » First flight of the Boeing B-52 Stratofortress.
April 21 » Secretary's Day (now Administrative Professionals' Day) is first celebrated.
April 28 » The Treaty of San Francisco comes into effect, restoring Japanese sovereignty and ending its state of war with most of the Allies of World War II.
May 3 » Lieutenant Colonels Joseph O. Fletcher and William P. Benedict of the United States land a plane at the North Pole.
September 1 » The Old Man and the Sea, the Pulitzer Prize-winning novel by Ernest Hemingway, is first published.
September 6 » A prototype aircraft crashes at the Farnborough Airshow in Hampshire, England, killing 29 spectators and the two on board.
Check the Wie (onder)zoekt wie? register to see who is (re)searching Kleijn Van Willigen.
The Family tree Van Willigen publication was prepared by Rob van Willigen (contact is not possible).
When copying data from this family tree, please include a reference to the origin: Rob van Willigen, "Family tree Van Willigen", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-willigen/I6509.php : accessed March 2, 2026), "Maria Johanna Susanna Adriana Kleijn Van Willigen (1868-1952)".
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