The temperature on July 12, 1937 was between 9.5 °C and 22.1 °C and averaged 15.7 °C. There was 12.3 hours of sunshine (75%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northwest. Source: KNMI
January 20 » Franklin D. Roosevelt and John Nance Garner are sworn in for their second terms as U.S. President and U.S. Vice President; it is the first time a Presidential Inauguration takes place on January 20 since the 20th Amendment changed the dates of presidential terms.
February 19 » Yekatit 12: During a public ceremony at the Viceregal Palace (the former Imperial residence) in Addis Ababa, Ethiopia, two Ethiopian nationalists of Eritrean origin attempt to kill viceroy Rodolfo Graziani with a number of grenades.
March 18 » The New London School explosion in New London, Texas, kills 300 people, mostly children.
July 7 » The Marco Polo Bridge Incident provides the Imperial Japanese Army with a pretext for starting the Second Sino-Japanese War.
August 2 » The Marihuana Tax Act of 1937 is passed in America, the effect of which is to render marijuana and all its by-products illegal.
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.
When copying data from this family tree, please include a reference to the origin: Gert Jonker, "Family tree Jonker", database, Genealogy Online (https://www.genealogieonline.nl/jonker_stamboom/I36.php : accessed January 14, 2026), "Hendrika Aleida (Hetty) Jonker (1937-)".
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