The temperature on May 20, 1944 was between 5.8 °C and 14.8 °C and averaged 9.7 °C. There was 3.7 mm of rain during 2.7 hours. There was 2.1 hours of sunshine (13%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. 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.
April 10 » Rudolf Vrba and Alfréd Wetzler escape from Birkenau death camp.
April 22 » World War II: In Greenland, the Allied Sledge Patrol attack the German Bassgeiger weather station.
May 1 » World War II: Two hundred Communist prisoners are shot by the Germans at Kaisariani, Athens in reprisal for the killing of General Franz Krech by partisans at Molaoi.
July 17 » World War II: At Sainte-Foy-de-Montgommery in Normandy Field Marshal Erwin Rommel is seriously injured by allied aircraft while returning to his headquarters.
August 5 » World War II: The Nazis begin a week-long massacre of between 40,000 and 50,000 civilians and prisoners of war in Wola, Poland.
September 25 » World War II: Surviving elements of the British 1st Airborne Division withdraw from Arnhem via Oosterbeek.
When copying data from this family tree, please include a reference to the origin: Gijsbertus Cornelis (Bert) Severijn, "Family tree Severijn", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-severijn/I617.php : accessed January 21, 2026), "Maria Samuelina Ingrid (Ria) van der Valk (1944-)".
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