The temperature on September 15, 1915 was between 9.3 °C and 17.8 °C and averaged 14.1 °C. There was 0.5 mm of rain. The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
March 18 » World War I: During the Battle of Gallipoli, three battleships are sunk during a failed British and French naval attack on the Dardanelles.
May 1 » The RMSLusitania departs from New York City on her 202nd, and final, crossing of the North Atlantic. Six days later, the ship is torpedoed off the coast of Ireland with the loss of 1,198 lives.
August 29 » US Navy salvage divers raise F-4, the first U.S. submarine sunk in an accident.
September 25 » World War I: The Second Battle of Champagne begins.
October 13 » First World War: The Battle of the Hohenzollern Redoubt marks the end of the Battle of Loos.
October 14 » World War I: Bulgaria joins the Central Powers.
Day of marriage June 19, 1940
The temperature on June 19, 1940 was between 11.5 °C and 21.0 °C and averaged 16.0 °C. There was 8.2 hours of sunshine (49%). 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, 1939 to September 3, 1940 the cabinet De Geer II, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
In The Netherlands , there was from September 3, 1940 to July 27, 1941 the cabinet Gerbrandy I, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
February 10 » The Soviet Union begins mass deportations of Polish citizens from occupied eastern Poland to Siberia.
May 24 » Acting on the orders of Soviet leader Joseph Stalin, NKVD agent Iosif Grigulevich orchestrates an unsuccessful assassination attempt on exiled Russian revolutionary Leon Trotsky in Coyoacán, Mexico.
June 18 » The "Finest Hour" speech is delivered by Winston Churchill.
July 23 » The United States' Under Secretary of State Sumner Welles issues a declaration on the U.S. non-recognition policy of the Soviet annexation and incorporation of three Baltic states: Estonia, Latvia and Lithuania.
August 8 » The "Aufbau Ost" directive is signed by Wilhelm Keitel.
October 7 » World War II: The McCollum memo proposes bringing the United States into the war in Europe by provoking the Japanese to attack the United States.
When copying data from this family tree, please include a reference to the origin: Gert Jonker, "Family tree Jonker", database, Genealogy Online (https://www.genealogieonline.nl/jonker_stamboom/I4669.php : accessed January 25, 2026), "Ottje Haitsma (1915-)".
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