The temperature on April 20, 1861 was about 9.4 °C. The air pressure was 1 kgf/m2 and came mainly from the south-southeast. The airpressure was 77 cm mercury. The atmospheric humidity was 56%. Source: KNMI
From February 23, 1860 till March 14, 1861 the Netherlands had a cabinet Van Hall - Van Heemstra with the prime ministers Mr. F.A. baron Van Hall (conservatief-liberaal) and Mr. S. baron Van Heemstra (liberaal).
From March 14, 1861 till January 31, 1862 the Netherlands had a cabinet Van Zuijlen van Nijevelt - Loudon with the prime ministers Mr. J.P.P. baron Van Zuijlen van Nijevelt (conservatief-liberaal) and Mr. J. Loudon (liberaal).
March 20 » An earthquake destroys Mendoza, Argentina.
May 24 » American Civil War: Union troops occupy Alexandria, Virginia.
June 1 » American Civil War: The Battle of Fairfax Court House is fought.
June 10 » American Civil War: Battle of Big Bethel: Confederate troops under John B. Magruder defeat a much larger Union force led by General Ebenezer W. Pierce in Virginia.
October 24 » The first transcontinental telegraph line across the United States is completed.
December 21 » Medal of Honor: Public Resolution 82, containing a provision for a Navy Medal of Valor, is signed into law by President Abraham Lincoln.
When copying data from this family tree, please include a reference to the origin: Peter de Jong, "Pedigree of De Jong, Koelé families", database, Genealogy Online (https://www.genealogieonline.nl/de-jong-stamboom/I2487.php : accessed February 7, 2026), "Geertruida Gerdina Jansen (± 1837-< 1892)".
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