January 2 » American statesman and diplomat John Hay announces the Open Door Policy to promote trade with China.
January 24 » Second Boer War: Boers stop a British attempt to break the Siege of Ladysmith in the Battle of Spion Kop.
February 7 » Second Boer War: British troops fail in their third attempt to lift the Siege of Ladysmith.
May 24 » Second Boer War: The United Kingdom annexes the Orange Free State.
June 5 » Second Boer War: British soldiers take Pretoria.
October 19 » Max Planck discovers Planck's law of black-body radiation.
Day of death December 11, 1957
The temperature on December 11, 1957 was between -0.4 °C and 3.9 °C and averaged 2.2 °C. There was 3.8 mm of rain during 7.9 hours. The almost completely overcast was. The average windspeed was 5 Bft (very strong wind) and was prevailing from the south east. Source: KNMI
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The Family tree Beumkes / Jonkers / Van Atten / Hogeweg publication was prepared by Marina Beumkes (contact is not possible).
When copying data from this family tree, please include a reference to the origin: Marina Beumkes, "Family tree Beumkes / Jonkers / Van Atten / Hogeweg", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-atten/I2489.php : accessed March 16, 2026), "Marretje Boon (1873-1957)".
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