The temperature on July 4, 1911 was between 3.0 °C and 20.0 °C and averaged 13.3 °C. There was 14.5 hours of sunshine (87%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
January 18 » Eugene B. Ely lands on the deck of the USSPennsylvania anchored in San Francisco Bay, the first time an aircraft landed on a ship.
February 18 » The first official flight with airmail takes place from Allahabad, United Provinces, British India (now India), when Henri Pequet, a 23-year-old pilot, delivers 6,500 letters to Naini, about 10 kilometres (6.2mi) away.
April 2 » The Australian Bureau of Statistics conducts the country's first national census.
July 7 » The United States, UK, Japan, and Russia sign the North Pacific Fur Seal Convention of 1911 banning open-water seal hunting, the first international treaty to address wildlife preservation issues.
October 5 » The Kowloon–Canton Railway commences service.
December 9 » A mine explosion near Briceville, Tennessee, kills 84 miners despite rescue efforts led by the United States Bureau of Mines.
Day of marriage April 21, 1933
The temperature on April 21, 1933 was between -0.6 °C and 9.6 °C and averaged 4.2 °C. There was 0.1 mm of rain during 0.3 hours. There was 2.6 hours of sunshine (18%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. 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.
In The Netherlands , there was from May 26, 1933 to July 31, 1935 the cabinet Colijn II, with Dr. H. Colijn (ARP) as prime minister.
January 5 » Construction of the Golden Gate Bridge begins in San Francisco Bay.
February 17 » Newsweek magazine is first published.
February 25 » Launch of the USSRanger at Newport News, Virginia. It is the first purpose-built aircraft carrier to be commissioned by the US Navy.
March 4 » Frances Perkins becomes United States Secretary of Labor, the first female member of the United States Cabinet.
April 1 » The recently elected Nazis under Julius Streicher organize a one-day boycott of all Jewish-owned businesses in Germany, ushering in a series of anti-Semitic acts.
May 27 » The Walt Disney Company releases the cartoon Three Little Pigs, with its hit song "Who's Afraid of the Big Bad Wolf?"
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/I528707.php : accessed February 23, 2026), "Jetske Stevens (1911-)".
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