The temperature on May 1, 1909 was between 1.3 °C and 9.5 °C and averaged 4.5 °C. There was 4.4 mm of rain. There was 8.2 hours of sunshine (55%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. 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 12 » The National Association for the Advancement of Colored People (NAACP) is founded.
April 9 » The U.S. Congress passes the Payne–Aldrich Tariff Act.
June 2 » Alfred Deakin becomes Prime Minister of Australia for the third time.
August 24 » Workers start pouring concrete for the Panama Canal.
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, 1931
The temperature on May 11, 1931 was between 7.6 °C and 19.4 °C and averaged 13.6 °C. There was 2.3 hours of sunshine (15%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-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.
January 7 » Guy Menzies flies the first solo non-stop trans-Tasman flight (from Australia to New Zealand) in 11 hours and 45 minutes, crash-landing on New Zealand's west coast.
February 20 » The U.S. Congress approves the construction of the San Francisco–Oakland Bay Bridge by the state of California.
March 15 » SSViking explodes off Newfoundland, killing 27 of the 147 on board.
March 31 » An earthquake in Nicaragua destroys Managua; killing 2,000.
June 23 » Wiley Post and Harold Gatty take off from Roosevelt Field, Long Island in an attempt to circumnavigate the world in a single-engine plane.
August 24 » Resignation of the United Kingdom's Second Labour Government. Formation of the UK National Government.
Day of death April 18, 1985
The temperature on April 18, 1985 was between 3.5 °C and 17.0 °C and averaged 11.4 °C. There was 6.8 hours of sunshine (48%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from Thursday, November 4, 1982 to Monday, July 14, 1986 the cabinet Lubbers I, with Drs. R.F.M. Lubbers (CDA) as prime minister.
January 1 » The first British mobile phone call is made by Michael Harrison to his father Sir Ernest Harrison, chairman of Vodafone.
February 28 » The Provisional Irish Republican Army carries out a mortar attack on the Royal Ulster Constabulary police station at Newry, killing nine officers in the highest loss of life for the RUC on a single day.
March 20 » Libby Riddles becomes the first woman to win the 1,135-mile Iditarod Trail Sled Dog Race.
March 31 » The first WrestleMania, the biggest wrestling event from the WWE (then the WWF), takes place in Madison Square Garden in New York City.
May 11 » Fifty-six spectators die and more than 200 are injured in the Bradford City stadium fire.
June 30 » Thirty-nine American hostages from the hijacked TWA Flight 847 are freed in Beirut after being held for 17 days.
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/I211697.php : accessed January 29, 2026), "Jan Harm Derks (1909-1985)".
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