The temperature on September 4, 1929 was between 13.7 °C and 28.4 °C and averaged 20.2 °C. There was 9.9 hours of sunshine (74%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
In The Netherlands , there was from March 8, 1926 to August 10, 1929 the cabinet De Geer I, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
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.
May 1 » The 7.2 Mw Kopet Dag earthquake shakes the Iran–Turkmenistan border region with a maximum Mercalli intensity of IX (Violent), killing up to 3,800 and injuring 1,121.
June 1 » The 1st Conference of the Communist Parties of Latin America is held in Buenos Aires.
June 7 » The Lateran Treaty is ratified, bringing Vatican City into existence.
July 27 » The Geneva Convention of 1929, dealing with treatment of prisoners-of-war, is signed by 53 nations.
September 24 » Jimmy Doolittle performs the first flight without a window, proving that full instrument flying from take off to landing is possible.
October 7 » Photius II becomes Ecumenical Patriarch of Constantinople.
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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/I8.php : accessed January 13, 2026), "Peter (Piet) Jonkers (1929-1956)".
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