The temperature on July 3, 1937 was between 15.3 °C and 27.3 °C and averaged 21.5 °C. There was 13.7 hours of sunshine (82%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south east. Source: KNMI
April 1 » The Royal New Zealand Air Force is formed as an independent service.
April 26 » Spanish Civil War: Guernica, Spain, is bombed by German Luftwaffe.
June 3 » The Duke of Windsor marries Wallis Simpson.
October 2 » Rafael Trujillo orders the execution of Haitians living in the northwestern region of the Dominican Republic.
December 16 » Theodore Cole and Ralph Roe attempt to escape from the American federal prison on Alcatraz Island in San Francisco Bay; neither is ever seen again.
December 22 » The Lincoln Tunnel opens to traffic in New York City.
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/I348487.php : accessed February 17, 2026), "Jantje "Jannie" Alkema (1937-2025)".
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