The temperature on July 9, 1935 was between 9.8 °C and 24.6 °C and averaged 18.6 °C. There was 12.9 hours of sunshine (78%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
February 2 » Leonarde Keeler administers polygraph tests to two murder suspects, the first time polygraph evidence was admitted in U.S. courts.
March 23 » Signing of the Constitution of the Commonwealth of the Philippines.
April 14 » The Black Sunday dust storm, considered one of the worst storms of the Dust Bowl, swept across the Oklahoma and Texas panhandles and neighboring areas.
September 30 » The Hoover Dam, astride the border between the U.S. states of Arizona and Nevada, is dedicated.
November 22 » The China Clipper inaugurates the first commercial transpacific air service, connecting Alameda, California with Manila.
December 17 » First flight of the Douglas DC-3.
Day of marriage April 9, 1955
The temperature on April 9, 1955 was between 6.6 °C and 11.1 °C and averaged 8.5 °C. There was 0.5 mm of rain during 1.0 hours. There was 2.8 hours of sunshine (21%). The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
When copying data from this family tree, please include a reference to the origin: Hendrik Dreyer, "Dreyer Tree", database, Genealogy Online (https://www.genealogieonline.nl/dreyer-tree/I12413.php : accessed January 28, 2026), "Jan Niclaas Dreyer (1935-2016)".
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