The temperature on September 17, 1865 was about 22.0 °C. The air pressure was 2 kgf/m2 and came mainly from the north-northwest. The airpressure was 77 cm mercury. The atmospheric humidity was 76%. Source: KNMI
In The Netherlands , there was from February 1, 1862 to February 10, 1866 the cabinet Thorbecke II, with Mr. J.R. Thorbecke (liberaal) as prime minister.
February 20 » End of the Uruguayan War, with a peace agreement between President Tomás Villalba and rebel leader Venancio Flores, setting the scene for the destructive War of the Triple Alliance.
April 4 » American Civil War: A day after Union forces capture Richmond, Virginia, U.S. President Abraham Lincoln visits the Confederate capital.
April 27 » The Sultana explodes and sinks in the United States' worst maritime disaster.
May 17 » The International Telegraph Union (later the International Telecommunication Union) is established in Paris.
July 7 » Four conspirators in the assassination of Abraham Lincoln are hanged.
July 14 » First ascent of the Matterhorn by Edward Whymper and party, four of whom die on the descent.
Day of death April 9, 1934
The temperature on April 9, 1934 was between 5.3 °C and 13.4 °C and averaged 9.7 °C. There was 1.7 mm of rain during 2.0 hours. There was 0.6 hours of sunshine (4%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
May 15 » Kārlis Ulmanis establishes an authoritarian government in Latvia.
May 23 » The Auto-Lite strike culminates in the "Battle of Toledo", a five-day melée between 1,300 troops of the Ohio National Guard and 6,000 picketers.
June 15 » The United States Great Smoky Mountains National Park is founded.
July 5 » "Bloody Thursday": Police open fire on striking longshoremen in San Francisco.
July 20 » Labor unrest in the U.S.: Police in Minneapolis fire upon striking truck drivers, during the Minneapolis Teamsters Strike of 1934, killing two and wounding sixty-seven.
August 19 » The German referendum of 1934 approves Hitler's appointment as head of state with the title of Führer.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I47861.php : accessed February 12, 2026), "Hendrik de Graaf (1865-1934)".
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