The temperature on January 24, 1906 was between -5.4 °C and 0.8 °C and averaged -2.9 °C. There was 7.3 hours of sunshine (84%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. 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.
January 22 » SSValencia runs aground on rocks on Vancouver Island, British Columbia, killing more than 130.
April 14 » The Azusa Street Revival opens and will launch Pentecostalism as a worldwide movement.
May 22 » The Wright brothers are granted U.S. patent number 821,393 for their "Flying-Machine".
July 11 » Murder of Grace Brown by Chester Gillette in the United States, inspiration for Theodore Dreiser's An American Tragedy.
September 1 » The International Federation of Intellectual Property Attorneys is established.
September 12 » The Newport Transporter Bridge is opened in Newport, South Wales by Viscount Tredegar.
Day of marriage May 19, 1939
The temperature on May 19, 1939 was between 3.9 °C and 14.8 °C and averaged 8.9 °C. There was 3.1 hours of sunshine (20%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
In The Netherlands , there was from June 24, 1937 to July 25, 1939 the cabinet Colijn IV, with Dr. H. Colijn (ARP) as prime minister.
In The Netherlands , there was from July 25, 1939 to August 10, 1939 the cabinet Colijn V, with Dr. H. Colijn (ARP) as prime minister.
In The Netherlands , there was from August 10, 1939 to September 3, 1940 the cabinet De Geer II, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
March 26 » Spanish Civil War: Nationalists begin their final offensive of the war.
April 30 » NBC inaugurates its regularly scheduled television service in New York City, broadcasting President Franklin D. Roosevelt's N.Y. World's Fair opening day ceremonial address.
June 1 » First flight of the German Focke-Wulf Fw 190 fighter aircraft.
June 4 » The Holocaust: The MSSt. Louis, a ship carrying 963 Jewish refugees, is denied permission to land in Florida, in the United States, after already being turned away from Cuba. Forced to return to Europe, more than 200 of its passengers later die in Nazi concentration camps.
June 17 » Last public guillotining in France: Eugen Weidmann, a convicted murderer, is executed in Versailles outside the Saint-Pierre prison.
July 6 » Anti-Jewish legislation in prewar Nazi Germany closes the last remaining Jewish enterprises.
Day of death June 29, 1970
The temperature on June 29, 1970 was between 10.9 °C and 17.3 °C and averaged 13.9 °C. There was 12.2 mm of rain during 3.5 hours. There was 1.4 hours of sunshine (8%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
April 8 » Bahr El-Baqar primary school bombing: Israeli bombers strike an Egyptian school. Forty-six children are killed.
April 17 » Apollo program: The ill-fated Apollo 13 spacecraft returns to Earth safely.
August 17 » Venera program: Venera 7 launched. It will later become the first spacecraft to successfully transmit data from the surface of another planet (Venus).
September 5 » Vietnam War: Operation Jefferson Glenn begins: The United States 101st Airborne Division and the South Vietnamese 1st Infantry Division initiate a new operation in Thừa Thiên–Huế Province.
October 8 » Aleksandr Solzhenitsyn wins the Nobel Prize in literature.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I528587.php : accessed February 5, 2026), "Harm Klaas Holtrop (1906-1970)".
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