The temperature on February 28, 1911 was between 5.5 °C and 11.2 °C and averaged 8.9 °C. There was 6.1 mm of rain. The average windspeed was 5 Bft (very strong wind) and was prevailing from the south-southwest. Source: KNMI
January 3 » A gun battle in the East End of London left two dead and sparked a political row over the involvement of then-Home Secretary Winston Churchill.
January 21 » The first Monte Carlo Rally takes place.
March 29 » The M1911 .45 ACP pistol becomes the official U.S. Army side arm.
May 21 » President of Mexico Porfirio Díaz and the revolutionary Francisco Madero sign the Treaty of Ciudad Juárez to put an end to the fighting between the forces of both men, concluding the initial phase of the Mexican Revolution.
July 24 » Hiram Bingham III re-discovers Machu Picchu, "the Lost City of the Incas".
September 7 » French poet Guillaume Apollinaire is arrested and put in jail on suspicion of stealing the Mona Lisa from the Louvre museum.
Day of marriage December 4, 1934
The temperature on December 4, 1934 was between 10.1 °C and 12.2 °C and averaged 10.8 °C. There was 6.3 mm of rain during 5.8 hours. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
When copying data from this family tree, please include a reference to the origin: Jo IJzerman, "Family tree IJzerman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-ijzerman/I925.php : accessed February 12, 2026), "Albertha Derksen (1911-)".
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