The temperature on March 23, 1911 was between 3.0 °C and 9.9 °C and averaged 5.6 °C. There was 5.5 hours of sunshine (45%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
March 29 » The M1911 .45 ACP pistol becomes the official U.S. Army side arm.
June 22 » George V and Mary of Teck are crowned King and Queen of the United Kingdom of Great Britain and Ireland.
July 1 » Germany despatches the gunship SMSPanther to Morocco, sparking the Agadir Crisis.
August 1 » Harriet Quimby takes her pilot's test and becomes the first U.S. woman to earn an Aero Club of America aviator's certificate.
September 1 » The armored cruiser Georgios Averof is commissioned into the Greek Navy. It now serves as a museum ship.
September 23 » Pilot Earle Ovington makes the first official airmail delivery in America under the authority of the United States Post Office Department
Day of marriage September 20, 1941
The temperature on September 20, 1941 was between 7.5 °C and 19.3 °C and averaged 13.5 °C. There was 10.5 hours of sunshine (85%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east. 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 21 » Sparked by the murder of a German officer in Bucharest, Romania the day before, members of the Iron Guard engaged in a rebellion and pogrom killing 125 Jews.
April 17 » World War II: The Kingdom of Yugoslavia surrenders to Germany.
May 20 » World War II: Battle of Crete: German paratroops invade Crete.
June 27 » World War II: German troops capture the city of Białystok during Operation Barbarossa.
November 12 » World War II: The Soviet cruiserChervona Ukraina is destroyed during the Battle of Sevastopol.
December 23 » World War II: After 15 days of fighting, the Imperial Japanese Army occupies Wake Island.
When copying data from this family tree, please include a reference to the origin: J. van Broekhoven, "Database Van Broekhoven", database, Genealogy Online (https://www.genealogieonline.nl/database-van-broekhoven/I69078.php : accessed February 18, 2026), "Petrus Johannes Josephus Klerks (1911-)".
Copy warning
Genealogical publications are copyright protected. Although data is often retrieved from public archives, the searching, interpreting, collecting, selecting and sorting of the data results in a unique product. Copyright protected work may not simply be copied or republished.
Please stick to the following rules
Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
Do not use this data until you have checked it, preferably at the source (the archives).
State from whom you have copied the data and ideally also his/her original source.