February 14 » The United States Department of Commerce and Labor is established (later split into the Department of Commerce and the Department of Labor).
February 23 » Cuba leases Guantánamo Bay to the United States "in perpetuity".
March 14 » Pelican Island National Wildlife Refuge, the first national wildlife refuge in the US, is established by President Theodore Roosevelt.
April 26 » Atlético Madrid Association football club is founded
June 11 » A group of Serbian officers stormed the royal palace and assassinated King Alexander Obrenović and his wife, Queen Draga.
September 11 » The first race at the Milwaukee Mile in West Allis, Wisconsin is held. It is the oldest major speedway in the world.
Day of marriage June 11, 1931
The temperature on June 11, 1931 was between 13.0 °C and 19.6 °C and averaged 16.4 °C. There was 3.2 hours of sunshine (19%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
March 3 » The United States adopts The Star-Spangled Banner as its national anthem.
March 19 » Gambling is legalized in Nevada.
July 1 » Wiley Post and Harold Gatty become the first people to circumnavigate the globe in a single-engined monoplane aircraft.
September 18 » The Mukden Incident gives Japan a pretext to invade and occupy Manchuria.
September 30 » Start of "Die Voortrekkers" youth movement for Afrikaners in Bloemfontein, South Africa.
October 21 » A secret society in the Imperial Japanese Army launches an abortive coup d'état attempt.
Day of death September 26, 1967
The temperature on September 26, 1967 was between 15.7 °C and 24.8 °C and averaged 19.8 °C. There was 0.1 mm of rain during 0.1 hours. There was 2.4 hours of sunshine (20%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south. Source: KNMI
January 14 » Counterculture of the 1960s: The Human Be-In takes place in San Francisco, California's Golden Gate Park, launching the Summer of Love.
March 9 » Trans World Airlines Flight 553 crashes in a field in Concord Township, Ohio following a mid-air collision with a Beechcraft Baron, killing 26 people.
May 30 » The Nigerian Eastern Region declares independence as the Republic of Biafra, sparking a civil war.
October 21 » The National Mobilization Committee to End the War in Vietnam organizes a march of fifty thousand people from the Lincoln Memorial to the Pentagon.
December 4 » Vietnam War: U.S. and South Vietnamese forces engage Viet Cong troops in the Mekong Delta.
December 21 » Louis Washkansky, the first man to undergo a human-to-human heart transplant, dies in Cape Town, South Africa, having lived for 18 days after the transplant.
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/I93257.php : accessed February 14, 2026), "Eelkje de Jong (1903-1967)".
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