The temperature on May 1, 1911 was between 2.7 °C and 12.6 °C and averaged 7.8 °C. There was 10.6 hours of sunshine (71%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
September 7 » French poet Guillaume Apollinaire is arrested and put in jail on suspicion of stealing the Mona Lisa from the Louvre museum.
September 24 » His Majesty's Airship No. 1, Britain's first rigid airship, is wrecked by strong winds before her maiden flight at Barrow-in-Furness.
October 9 » An accidental bomb explosion triggers the Wuchang Uprising against the Chinese monarchy.
December 9 » A mine explosion near Briceville, Tennessee, kills 84 miners despite rescue efforts led by the United States Bureau of Mines.
December 14 » Roald Amundsen's team, comprising himself, Olav Bjaaland, Helmer Hanssen, Sverre Hassel, and Oscar Wisting, becomes the first to reach the South Pole.
December 24 » Lackawanna Cut-Off railway line opens in New Jersey and Pennsylvania.
Day of death September 9, 1928
The temperature on September 9, 1928 was between 14.2 °C and 29.6 °C and averaged 20.4 °C. There was 8.9 mm of rain. There was 9.1 hours of sunshine (69%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
When copying data from this family tree, please include a reference to the origin: Bruce Fast, "Genealogy Harssema", database, Genealogy Online (https://www.genealogieonline.nl/genealogy-harssema/I265174.php : accessed August 10, 2025), "Henry HELMHOLDT (1911-1928)".
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