The temperature on October 4, 1915 was between 6.6 °C and 13.8 °C and averaged 9.5 °C. There was 3.3 mm of rain. There was 7.9 hours of sunshine (69%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
March 20 » Albert Einstein publishes his general theory of relativity.
May 1 » The RMSLusitania departs from New York City on her 202nd, and final, crossing of the North Atlantic. Six days later, the ship is torpedoed off the coast of Ireland with the loss of 1,198 lives.
June 29 » The North Saskatchewan River flood of 1915 is the worst flood in Edmonton history.
July 1 » Leutnant Kurt Wintgens of the then-named German Deutsches Heer's Fliegertruppe army air service achieves the first known aerial victory with a synchronized machine-gun armed fighter plane, the Fokker M.5K/MG Eindecker.
August 4 » World War I: The German 12th Army occupies Warsaw during the Gorlice–Tarnów Offensive and the Great Retreat of 1915.
August 15 » A story in New York World newspaper reveals that the Imperial German government had purchased excess phenol from Thomas Edison that could be used to make explosives for the war effort and diverted it to Bayer for aspirin production.
Day of marriage July 30, 1941
The temperature on July 30, 1941 was between 12.4 °C and 17.0 °C and averaged 14.7 °C. There was 6.4 mm of rain during 2.3 hours. There was -0.1 hours of sunshine (0%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
In The Netherlands , there was from September 3, 1940 to July 27, 1941 the cabinet Gerbrandy I, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
March 28 » World War II: Britain's Mediterranean Fleet sinks three heavy cruisers and two destroyers of Italy's Regia Marina.
May 24 » World War II: In the Battle of the Atlantic, the German Battleship Bismarck sinks then-pride of the Royal Navy, HMSHood, killing all but three crewmen.
November 13 » World War II: The aircraft carrier HMSArk Royal is torpedoed by U-81, sinking the following day.
December 9 » World War II: The American 19th Bombardment Group attacks Japanese ships off the coast of Vigan, Luzon.
December 15 » The Holocaust in Ukraine: German troops murder over 15,000 Jews at Drobytsky Yar, a ravine southeast of the city of Kharkiv.
December 23 » World War II: After 15 days of fighting, the Imperial Japanese Army occupies Wake Island.
When copying data from this family tree, please include a reference to the origin: J Eijsermans, "Eijsermans family tree", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eijsermans/I265867.php : accessed January 21, 2026), "Johannes Franciscus Hendrikus van Oers (1915-)".
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.