February 2 » The Australian Premiers' Conference held in Melbourne decides to locate Australia's capital city, Canberra, between Sydney and Melbourne.
February 6 » Spanish–American War: The Treaty of Paris, a peace treaty between the United States and Spain, is ratified by the United States Senate.
March 6 » Bayer registers "Aspirin" as a trademark.
September 13 » Mackinder, Ollier and Brocherel make the first ascent of Batian (5,199 m - 17,058ft), the highest peak of Mount Kenya.
September 23 » The American Asiatic Squadron destroys a Filipino battery at the Battle of Olongapo.
December 2 » Philippine–American War: The Battle of Tirad Pass, termed "The Filipino Thermopylae", is fought.
Day of death June 20, 1958
The temperature on June 20, 1958 was between 11.5 °C and 15.5 °C and averaged 13.7 °C. There was 4.9 mm of rain during 5.9 hours. The almost completely overcast was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
March 19 » The Monarch Underwear Company fire leaves 24 dead and 15 injured.
May 27 » First flight of the McDonnell Douglas F-4 Phantom II.
June 17 » The Ironworkers Memorial Second Narrows Crossing, in the process of being built to connect Vancouver and North Vancouver (Canada), collapses into the Burrard Inlet killing 18 ironworkers and injuring others.
July 1 » Flooding of Canada's Saint Lawrence Seaway begins.
December 5 » Subscriber Trunk Dialling (STD) is inaugurated in the United Kingdom by Queen Elizabeth II when she speaks to the Lord Provost in a call from Bristol to Edinburgh.
December 28 » "Greatest Game Ever Played": Baltimore Colts defeat the New York Giants in the first ever National Football League sudden death overtime game at New York's Yankee Stadium.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I74906.php : accessed October 3, 2026), "Klaas Hamstra (1899-1958)".
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