The temperature on May 11, 1920 was between 3.2 °C and 18.7 °C and averaged 12.9 °C. There was 11.6 hours of sunshine (75%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-southeast. Source: KNMI
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
February 2 » The Tartu Peace Treaty is signed between Estonia and Russia.
April 15 » Two security guards are murdered during a robbery in South Braintree, Massachusetts. Anarchists Sacco and Vanzetti would be convicted of and executed for the crime, amid much controversy.
May 7 » Morecambe Football Club was founded during a meeting at the West View Hotel on the town's promenade.
August 20 » The National Football League is organized as the American Professional Football Conference in Canton, Ohio
September 16 » The Wall Street bombing: A bomb in a horse wagon explodes in front of the J. P. Morgan building in New York City killing 38 and injuring 400.
November 28 » Irish War of Independence: Kilmichael Ambush: The Irish Republican Army ambush a convoy of British Auxiliaries and kill seventeen.
Day of marriage May 24, 1947
The temperature on May 24, 1947 was between 9.1 °C and 19.7 °C and averaged 14.9 °C. There was 0.1 mm of rain during 0.3 hours. There was 8.1 hours of sunshine (50%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
January 15 » The Black Dahlia murder: the dismembered corpse of Elizabeth Short was found in Los Angeles.
June 25 » The Diary of a Young Girl (better known as The Diary of Anne Frank) is published.
July 19 » Prime Minister of the shadow Burmese government, Bogyoke Aung San and eight others are assassinated.
August 2 » A British South American Airways Avro Lancastrian airliner crashes into a mountain during a flight from Buenos Aires, Argentina to Santiago, Chile. The wreckage would not be found until 1998.
September 18 » The National Security Council and the Central Intelligence Agency are established in the United States by the National Security Act. It also establishes the Air Force as an equal partner of the Army and Navy.
December 6 » The Everglades National Park in Florida is dedicated.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I299707.php : accessed February 20, 2026), "Harm Boersma (1920-< 2019)".
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