The temperature on September 4, 1861 was about 19.3 °C. The air pressure was 13 kgf/m2 and came mainly from the west-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 63%. 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).
February 9 » American Civil War: Jefferson Davis is elected the Provisional President of the Confederate States of America by the Confederate convention at Montgomery, Alabama.
February 18 » With Italian unification almost complete, Victor Emmanuel II of Piedmont, Savoy and Sardinia assumes the title of King of Italy.
March 21 » Alexander Stephens gives the Cornerstone Speech.
May 29 » The Hong Kong General Chamber of Commerce is founded, in Hong Kong.
December 10 » American Civil War: The Confederate States of America accept a rival state government's pronouncement that declares Kentucky to be the 13th state of the Confederacy.
December 26 » American Civil War: The Trent Affair: Confederate diplomatic envoys James Murray Mason and John Slidell are freed by the United States government, thus heading off a possible war between the United States and the United Kingdom.
Day of marriage May 12, 1887
The temperature on May 12, 1887 was about 11.8 °C. The air pressure was 22 kgf/m2 and came mainly from the north-northwest. The airpressure was 76 cm mercury. The atmospheric humidity was 59%. Source: KNMI
In The Netherlands , there was from April 23, 1884 to April 21, 1888 the cabinet Heemskerk, with Mr. J. Heemskerk Azn. (conservatief) as prime minister.
February 23 » The French Riviera is hit by a large earthquake, killing around 2,000.
April 10 » On Easter Sunday, Pope Leo XIII authorizes the establishment of the Catholic University of America.
April 28 » A week after being arrested by the Prussian Secret Police, French police inspector Guillaume Schnaebelé is released on order of William I, German Emperor, defusing a possible war.
June 23 » The Rocky Mountains Park Act becomes law in Canada creating the nation's first national park, Banff National Park.
July 4 » The founder of Pakistan, Quaid-i-Azam Muhammad Ali Jinnah, joins Sindh-Madrasa-tul-Islam, Karachi.
November 9 » The United States receives rights to Pearl Harbor, Hawaii.
Day of death July 27, 1941
The temperature on July 27, 1941 was between 15.6 °C and 18.5 °C and averaged 16.9 °C. There was 1.3 mm of rain during 1.3 hours. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
In The Netherlands , there was from September 3, 1940 to July 27, 1941 the cabinet Gerbrandy I, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
January 28 » Franco-Thai War: Final air battle of the conflict. A Japanese-mediated armistice goes into effect later in the day.
February 23 » Plutonium is first produced and isolated by Dr. Glenn T. Seaborg.
April 17 » World War II: The Kingdom of Yugoslavia surrenders to Germany.
May 24 » World War II: In the Battle of the Atlantic, the German Battleship Bismarck sinks then-pride of the Royal Navy, HMSHood, killing all but three crewmen.
September 30 » World War II: The Babi Yar massacre comes to an end.
December 5 » World War II: Great Britain declares war on Finland, Hungary and Romania.
When copying data from this family tree, please include a reference to the origin: H.L. Witmer, "Family tree Witmer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-witmer/I92.php : accessed March 8, 2026), "Helena Maria Witmer (1861-1941)".
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