The temperature on November 21, 1911 was between -0.1 °C and 5.8 °C and averaged 3.6 °C. There was 2.6 mm of rain. There was 0.2 hours of sunshine (2%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
February 18 » The first official flight with airmail takes place from Allahabad, United Provinces, British India (now India), when Henri Pequet, a 23-year-old pilot, delivers 6,500 letters to Naini, about 10 kilometres (6.2mi) away.
July 4 » A massive heat wave strikes the northeastern United States, killing 380 people in eleven days and breaking temperature records in several cities.
July 24 » Hiram Bingham III re-discovers Machu Picchu, "the Lost City of the Incas".
September 20 » The White Star Line's RMSOlympic collides with the British warship HMSHawke.
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.
November 11 » Many cities in the Midwestern United States break their record highs and lows on the same day as a strong cold front rolls through.
Day of marriage September 6, 1931
The temperature on September 6, 1931 was between 8.6 °C and 16.6 °C and averaged 12.4 °C. There was 3.4 mm of rain during 2.3 hours. There was 3.7 hours of sunshine (28%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
February 3 » The Hawke's Bay earthquake, New Zealand's worst natural disaster, kills 258.
March 31 » An earthquake in Nicaragua destroys Managua; killing 2,000.
May 7 » The stand-off between criminal Francis Crowley and 300 members of the New York Police Department takes place in his fifth-floor apartment on West 91st Street, New York City.
July 1 » United Airlines begins service (as Boeing Air Transport).
September 18 » The Mukden Incident gives Japan a pretext to invade and occupy Manchuria.
December 5 » Cathedral of Christ the Saviour in Moscow was destroyed on orders from Joseph Stalin.
When copying data from this family tree, please include a reference to the origin: Wim de Vries, "Family tree Kaempff", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-kaempff/I4535.php : accessed February 22, 2026), "Hilligje van Hien (1911-)".
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