The temperature on September 15, 1909 was between 8.6 °C and 13.6 °C and averaged 11.9 °C. There was 0.5 mm of rain. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
February 15 » The Flores Theater fire in Acapulco, Mexico kills 250.
February 22 » The sixteen battleships of the Great White Fleet, led by USSConnecticut, return to the United States after a voyage around the world.
April 11 » The city of Tel Aviv is founded.
May 13 » The first Giro d'Italia starts from Milan. Italian cyclist Luigi Ganna will be the winner.
August 24 » Workers start pouring concrete for the Panama Canal.
December 4 » In Canadian football, the First Grey Cup game is played. The University of Toronto Varsity Blues defeat the Toronto Parkdale Canoe Club, 26–6.
When copying data from this family tree, please include a reference to the origin: Jaap van der Werff, "Family tree Van der Werff / Kooistra", database, Genealogy Online (https://www.genealogieonline.nl/van-der-werff-stamboom/I526451.php : accessed February 18, 2026), "Petrus Antonius Witlox (1909-1970)".
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