The temperature on February 1, 1911 was between -8.0 °C and 1.7 °C and averaged -2.1 °C. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northwest. Source: KNMI
January 21 » The first Monte Carlo Rally takes place.
April 27 » Following the resignation and death of William P. Frye, a compromise is reached to rotate the office of President pro tempore of the United States Senate.
May 19 » Parks Canada, the world's first national park service, is established as the Dominion Parks Branch under the Department of the Interior.
May 30 » At the Indianapolis Motor Speedway, the first Indianapolis 500 ends with Ray Harroun in his Marmon Wasp becoming the first winner of the 500-mile auto race.
August 14 » United States Senate leaders agree to rotate the office of President pro tempore of the Senate among leading candidates to fill the vacancy left by William P. Frye's death.
December 24 » Lackawanna Cut-Off railway line opens in New Jersey and Pennsylvania.
Day of marriage September 11, 1941
The temperature on September 11, 1941 was between 10.6 °C and 18.2 °C and averaged 14.1 °C. There was 7.7 mm of rain during 7.2 hours. There was 4.2 hours of sunshine (32%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
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.
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
January 25 » Pope Pius XII elevates the Apostolic Vicariate of the Hawaiian Islands to the dignity of a diocese. It becomes the Roman Catholic Diocese of Honolulu.
March 25 » The Kingdom of Yugoslavia joins the Axis powers with the signing of the Tripartite Pact.
April 23 » World War II: The Greek government and King George II evacuate Athens before the invading Wehrmacht.
December 11 » World War II: Poland declares war on the Empire of Japan.
December 19 » World War II: Adolf Hitler appoints himself as head of the Oberkommando des Heeres.
December 25 » Admiral Émile Muselier seizes the archipelago of Saint Pierre and Miquelon, which become the first part of France to be liberated by the Free French Forces.
Day of death June 15, 1943
The temperature on June 15, 1943 was between 7.9 °C and 17.0 °C and averaged 11.9 °C. There was 8.7 mm of rain during 4.8 hours. There was 4.9 hours of sunshine (29%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
January 15 » World War II: The Soviet counter-offensive at Voronezh begins.
February 2 » World War II: The Battle of Stalingrad comes to an end when Soviet troops accept the surrender of the last organized German troops in the city.
February 7 » World War II: Imperial Japanese Navy forces complete the evacuation of Imperial Japanese Army troops from Guadalcanal during Operation Ke, ending Japanese attempts to retake the island from Allied forces in the Guadalcanal Campaign.
July 5 » World War II: German forces begin a massive offensive against the Soviet Union at the Battle of Kursk, also known as Operation Citadel.
August 31 » USSHarmon, the first U.S. Navy ship to be named after a black person, is commissioned.
October 19 » The cargo vessel Sinfra is attacked by Allied aircraft at Crete and sunk. 2,098 Italian prisoners of war drown with it.
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/I167664.php : accessed February 12, 2026), "Johannes Postema Siccama (1911-1943)".
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