The temperature on April 30, 1915 was between 4.6 °C and 17.7 °C and averaged 10.0 °C. There was 8.7 hours of sunshine (59%). The average windspeed was 2 Bft (weak wind) and was prevailing from the ??. 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.
January 26 » The Rocky Mountain National Park is established by an act of the U.S. Congress.
January 31 » World War I: Germany is the first to make large-scale use of poison gas in warfare in the Battle of Bolimów against Russia.
February 22 » World War I: The Imperial German Navy institutes unrestricted submarine warfare.
March 27 » Typhoid Mary, the first healthy carrier of disease ever identified in the United States is put in quarantine for the second time, where she would remain for the rest of her life.
August 27 » Attempted assassination of Bishop Patrick Heffron, bishop of the Diocese of Winona by Rev. Louis M. Lesches.
August 29 » US Navy salvage divers raise F-4, the first U.S. submarine sunk in an accident.
Day of death August 11, 1949
The temperature on August 11, 1949 was between 9.9 °C and 15.7 °C and averaged 13.2 °C. There was 9.3 mm of rain during 7.2 hours. There was 1.9 hours of sunshine (13%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
From August 7, 1948 till March 15, 1951 the Netherlands had a cabinet Drees - Van Schaik with the prime ministers Dr. W. Drees (PvdA) and Mr. J.R.H. van Schaik (KVP).
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The Family tree Weerman publication was prepared by Hendrik Willem Jonker (contact is not possible).
When copying data from this family tree, please include a reference to the origin: Hendrik Willem Jonker, "Family tree Weerman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weerman/I261.php : accessed December 31, 2025), "Roelfien Hadderingh (1892-1949)".
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