The temperature on September 23, 1917 was between 10.0 °C and 16.2 °C and averaged 13.7 °C. There was 0.1 mm of rain. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-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.
February 24 » World War I: The U.S. ambassador Walter Hines Page to the United Kingdom is given the Zimmermann Telegram, in which Germany pledges to ensure the return of New Mexico, Texas, and Arizona to Mexico if Mexico declares war on the United States.
March 2 » The enactment of the Jones–Shafroth Act grants Puerto Ricans United States citizenship.
March 4 » Jeannette Rankin of Montana becomes the first female member of the United States House of Representatives.
July 6 » World War I: Arabian troops led by T. E. Lawrence ("Lawrence of Arabia") and Auda ibu Tayi capture Aqaba from the Ottoman Empire during the Arab Revolt.
July 31 » World War I: The Battle of Passchendaele begins near Ypres in West Flanders, Belgium.
October 13 » The "Miracle of the Sun" is witnessed by an estimated 70,000 people in the Cova da Iria in Portugal.
Day of marriage April 18, 1942
The temperature on April 18, 1942 was between 8.0 °C and 17.6 °C and averaged 12.7 °C. There was 9.1 hours of sunshine (65%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east-southeast. 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 13 » Henry Ford patents a plastic automobile, which is 30% lighter than a regular car.
February 8 » World War II: Japan invades Singapore.
May 6 » World War II: On Corregidor, the last American forces in the Philippines surrender to the Japanese.
July 23 » World War II: The German offensives Operation Edelweiss and Operation Braunschweig begin.
November 4 » World War II: Disobeying a direct order by Adolf Hitler, General Field Marshal Erwin Rommel begins a retreat of his forces after a costly defeat during the Second Battle of El Alamein. The retreat would ultimately last five months.
November 30 » World War II: Battle of Tassafaronga; A smaller squadron of Japanese destroyers led by Raizō Tanaka defeats a U.S. cruiser force under Carleton H. Wright.
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/I398564.php : accessed January 12, 2026), "Roelfien Beerta (1917-< 2016)".
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.