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 20 » Astronomer Angelo Secchi demonstrates the Secchi disk, which measures water clarity, aboard Pope Pius IX's yacht, the L'Immaculata Concezion.
May 1 » The Empire of Brazil, Argentina, and Uruguay sign the Treaty of the Triple Alliance.
May 13 » American Civil War: Battle of Palmito Ranch: In far south Texas, the last land battle of the Civil War ends with a Confederate victory.
June 28 » The Army of the Potomac is disbanded.
November 18 » Mark Twain's short story "The Celebrated Jumping Frog of Calaveras County" is published in the New York Saturday Press.
December 5 » Chincha Islands War: Peru allies with Chile against Spain.
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
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 21, 2026), "Hendrik de Graaf (1865-1934)".
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.