January 23 » Second Boer War: The Battle of Spion Kop between the forces of the South African Republic and the Orange Free State and British forces ends in a British defeat.
January 24 » Second Boer War: Boers stop a British attempt to break the Siege of Ladysmith in the Battle of Spion Kop.
April 30 » Hawaii becomes a territory of the United States, with Sanford B. Dole as governor.
July 2 » Jean Sibelius' Finlandia receives its première performance in Helsinki with the Helsinki Philharmonic Society conducted by Robert Kajanus.
November 7 » Second Boer War: Battle of Leliefontein, a battle during which the Royal Canadian Dragoons win three Victoria Crosses.
December 19 » Hopetoun Blunder: The first Governor-General of Australia John Hope, 7th Earl of Hopetoun, appoints Sir William Lyne premier of the new state of New South Wales, but he is unable to persuade other colonial politicians to join his government and is forced to resign.
Day of marriage February 18, 1926
The temperature on February 18, 1926 was between 4.4 °C and 8.0 °C and averaged 6.3 °C. There was 2.9 mm of rain. There was 2.8 hours of sunshine (28%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
March 14 » The El Virilla train accident, Costa Rica, kills 248 people and wounds another 93 when a train falls off a bridge over the Río Virilla between Heredia and Tibás.
March 15 » The dictator Theodoros Pangalos is elected President of Greece without opposition.
March 16 » History of Rocketry: Robert Goddard launches the first liquid-fueled rocket, at Auburn, Massachusetts.
May 9 » Admiral Richard E. Byrd and Floyd Bennett claim to have flown over the North Pole (later discovery of Byrd's diary appears to cast some doubt on the claim.)
May 22 » Chiang Kai-shek replaces the communists in Kuomintang China.
August 20 » Japan's public broadcasting company, Nippon Hōsō Kyōkai (NHK) is established.
Day of death April 25, 1981
The temperature on April 25, 1981 was between 4.5 °C and 13.5 °C and averaged 9.4 °C. There was 0.1 mm of rain during 0.1 hours. There was 0.2 hours of sunshine (1%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the east-southeast. Source: KNMI
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
In The Netherlands , there was from Friday, September 11, 1981 to Saturday, May 29, 1982 the cabinet Van Agt II, with Mr. A.A.M. van Agt (CDA) as prime minister.
March 30 » U.S. President Ronald Reagan is shot in the chest outside a Washington, D.C., hotel by John Hinckley, Jr.; three others are wounded in the same incident.
April 3 » The Osborne 1, the first successful portable computer, is unveiled at the West Coast Computer Faire in San Francisco.
June 18 » The Lockheed F-117 Nighthawk, the first operational aircraft initially designed around stealth technology, makes its first flight.
June 27 » The Central Committee of the Communist Party of China issues its "Resolution on Certain Questions in the History of Our Party Since the Founding of the People's Republic of China", laying the blame for the Cultural Revolution on Mao Zedong.
August 10 » Murder of Adam Walsh: The head of John Walsh's son is found. This inspires the creation of the television series America's Most Wanted and the National Center for Missing & Exploited Children.
November 11 » Antigua and Barbuda joins the United Nations.
When copying data from this family tree, please include a reference to the origin: Gert Jonker, "Family tree Jonker", database, Genealogy Online (https://www.genealogieonline.nl/jonker_stamboom/I29239.php : accessed January 8, 2026), "Froukje Jelsma (1900-1981)".
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