In 1948 overgenomen van zijn vader Sijbolt, aanvankelijk samen met zijn broer Thijs Roelof, maar zijn een paar jaar later zakelijk hun eigen weg gegaan.Otto werd bloemist met de kwekerij en Thijs ging verder als zelftandig hovenier.
The temperature on June 12, 1906 was between 10.4 °C and 19.8 °C and averaged 13.9 °C. There was 10.2 hours of sunshine (61%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
In The Netherlands , there was from August 17, 1905 to February 11, 1908 the cabinet De Meester, with Mr. Th. de Meester (unie-liberaal) as prime minister.
April 8 » Auguste Deter, the first person to be diagnosed with Alzheimer's disease, dies.
June 8 » Theodore Roosevelt signs the Antiquities Act into law, authorizing the President to restrict the use of certain parcels of public land with historical or conservation value.
August 5 » Persian Constitutional Revolution: Mozaffar ad-Din Shah Qajar, King of Iran, agrees to convert the government to a constitutional monarchy.
August 16 » The 8.2 Mw Valparaíso earthquake hits central Chile, killing 3,882 people.
September 7 » Alberto Santos-Dumont flies his 14-bis aircraft at Bagatelle, France for the first time successfully.
October 11 » San Francisco sparks a diplomatic crisis between the United States and Japan by ordering segregated schools for Japanese students.
When copying data from this family tree, please include a reference to the origin: Alfred Groot, "Family tree Groot", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-groot/I976.php : accessed December 27, 2025), "otto Groot (1906-)".
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