The temperature on June 15, 1909 was between 10.6 °C and 18.0 °C and averaged 13.8 °C. There was 2.6 mm of rain. There was 2.2 hours of sunshine (13%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east-southeast. Source: KNMI
February 12 » New Zealand's worst maritime disaster of the 20th century happens when the SSPenguin, an inter-island ferry, sinks and explodes at the entrance to Wellington Harbour.
February 20 » Publication of the Futurist Manifesto in the French journal Le Figaro.
March 10 » By signing the Anglo-Siamese Treaty of 1909, Thailand relinquishes its sovereignty over the Malay states of Kedah, Kelantan, Perlis and Terengganu, which become British protectorates.
April 6 » Robert Peary and Matthew Henson become the first people to reach the North Pole; Peary's claim has been disputed because of failings in his navigational ability.
October 26 » An Jung-geun assassinates Japan's Resident-General of Korea.
December 4 » The Montreal Canadiens ice hockey club, the oldest surviving professional hockey franchise in the world, is founded as a charter member of the National Hockey Association.
Day of marriage May 11, 1937
The temperature on May 11, 1937 was between 10.4 °C and 18.2 °C and averaged 13.4 °C. There was 6.3 mm of rain during 1.7 hours. There was 0.8 hours of sunshine (5%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east-southeast. Source: KNMI
May 6 » Hindenburg disaster: The German zeppelin Hindenburg catches fire and is destroyed within a minute while attempting to dock at Lakehurst, New Jersey. Thirty-six people are killed.
July 6 » Spanish Civil War: Battle of Brunete: The battle begins with Spanish Republican troops going on the offensive against the Nationalists to relieve pressure on Madrid.
July 8 » Turkey, Iran, Iraq and Afghanistan sign the Treaty of Saadabad.
July 26 » Spanish Civil War: End of the Battle of Brunete with the Nationalist victory.
December 21 » Snow White and the Seven Dwarfs, the world's first full-length animated feature, premieres at the Carthay Circle Theatre.
December 29 » The Irish Free State is replaced by a new state called Ireland with the adoption of a new constitution.
Day of death May 19, 1955
The temperature on May 19, 1955 was between 3.2 °C and 10.2 °C and averaged 6.0 °C. There was 1.9 mm of rain during 1.6 hours. There was 5.2 hours of sunshine (33%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
March 2 » Norodom Sihanouk, king of Cambodia, abdicates the throne in favor of his father, Norodom Suramarit.
May 2 » Tennessee Williams wins the Pulitzer Prize for Drama for Cat on a Hot Tin Roof.
May 25 » First ascent of Mount Kangchenjunga: A British expedition led by Charles Evans, Joe Brown and George Band reaches the summit of the third-highest mountain in the world (8,586 meters); Norman Hardie and Tony Streather join them the following day.
May 25 » In the United States, a night-time F5 tornado strikes the small city of Udall, Kansas, killing 80 and injuring 273. It is the deadliest tornado to ever occur in the state and the 23rd deadliest in the U.S.
June 7 » Lux Radio Theatre signs off the air permanently. The show launched in New York in 1934, and featured radio adaptations of Broadway shows and popular films.
July 9 » The Russell–Einstein Manifesto calls for a reduction of the risk of nuclear warfare.
Day of burial May 22, 1955
The temperature on May 22, 1955 was between 0.4 °C and 10.6 °C and averaged 5.6 °C. There was 0.4 mm of rain during 1.3 hours. There was 5.9 hours of sunshine (37%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
February 13 » Israel obtains four of the seven Dead Sea Scrolls.
April 1 » The EOKA rebellion against the British Empire begins in Cyprus, with the goal of unifying with Greece.
April 24 » The Bandung Conference ends: Twenty-nine non-aligned nations of Asia and Africa finish a meeting that condemns colonialism, racism, and the Cold War.
June 26 » The South African Congress Alliance adopts the Freedom Charter at the Congress of the People in Kliptown.
October 29 » The Soviet battleshipNovorossiysk strikes a World War II mine in the harbor at Sevastopol.
December 14 » Albania, Austria, Bulgaria, Cambodia, Ceylon, Finland, Hungary, Ireland, Italy, Jordan, Laos, Libya, Nepal, Portugal, Romania and Spain join the United Nations through United Nations Security Council Resolution 109.
When copying data from this family tree, please include a reference to the origin: Walter Waterschoot, "Family tree Waterschoot en De Lepper", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-waterschoot/I9983.php : accessed February 6, 2026), "Jacoba Maria Johanna Wilhelmina "Jacoba" de Lepper (1909-1955)".
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