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.
April 14 » U.S. Secretary of State William H. Seward and his family are attacked at home by Lewis Powell.
April 20 » Astronomer Angelo Secchi demonstrates the Secchi disk, which measures water clarity, aboard Pope Pius IX's yacht, the L'Immaculata Concezion.
May 9 » American Civil War: Nathan Bedford Forrest surrenders his forces at Gainesville, Alabama.
July 7 » Four conspirators in the assassination of Abraham Lincoln are hanged.
November 18 » Mark Twain's short story "The Celebrated Jumping Frog of Calaveras County" is published in the New York Saturday Press.
November 26 » Battle of Papudo: A Spanish navy schooner is defeated by a Chilean corvette north of Valparaíso, Chile.
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
February 23 » Leopold III becomes King of Belgium.
May 15 » Kārlis Ulmanis establishes an authoritarian government in Latvia.
May 28 » Near Callander, Ontario, Canada, the Dionne quintuplets are born to Oliva and Elzire Dionne; they will be the first quintuplets to survive infancy.
June 30 » The Night of the Long Knives, Adolf Hitler's violent purge of his political rivals in Germany, takes place.
August 2 » Gleichschaltung: Adolf Hitler becomes Führer of Germany following the death of President Paul von Hindenburg.
September 8 » Off the New Jersey coast, a fire aboard the passenger liner SSMorro Castle kills 137 people.
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 October 13, 2026), "Hendrik de Graaf (1865-1934)".
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