January 28 » The Carnegie Institution of Washington is founded in Washington, D.C. with a $10 million gift from Andrew Carnegie.
February 27 » Second Boer War: Australian soldiers Harry "Breaker" Morant and Peter Handcock are executed in Pretoria after being convicted of war crimes.
April 14 » James Cash Penney opens his first store in Kemmerer, Wyoming.
April 18 » The 7.5 Mw Guatemala earthquake shakes Guatemala with a maximum Mercalli intensity of VIII (Severe), killing between 800–2,000.
July 17 » Willis Carrier creates the first air conditioner in Buffalo, New York.
August 22 » Cadillac Motor Company is founded.
Day of marriage October 29, 1937
The temperature on October 29, 1937 was between 8.6 °C and 16.2 °C and averaged 12.5 °C. There was 5.9 hours of sunshine (60%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-southeast. Source: KNMI
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/I93062.php : accessed February 19, 2026), "Jan Hartman (1902-)".
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