Erfgoed Leiden en omstreken te Leiden, BS Geboorte Stadsarchief van Leiden (Stadsbestuur (SA III)) (1816-1929), Deel: 4777, Periode: 1911, Leiden, archief 0516, inventarisnummer 4777, 6 juni 1911, Geboorteakten 1911, aktenummer 763
Haags Gemeentearchief te Den Haag, BS Huwelijk Ambtenaar van de burgerlijke stand van de gemeente 's-Gravenhage, 's-Gravenhage, archief 335-01, inventarisnummer 1175, 26-07-1940, Nadere toegang op het huwelijksregister van de gemeente 's-Gravenhage, aktenummer D372
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The temperature on June 6, 1911 was between 13.0 °C and 23.7 °C and averaged 18.3 °C. There was 13.7 hours of sunshine (83%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
January 18 » Eugene B. Ely lands on the deck of the USSPennsylvania anchored in San Francisco Bay, the first time an aircraft landed on a ship.
March 29 » The M1911 .45 ACP pistol becomes the official U.S. Army side arm.
May 15 » In Standard Oil Co. of New Jersey v. United States, the United States Supreme Court declares Standard Oil to be an "unreasonable" monopoly under the Sherman Antitrust Act and orders the company to be broken up.
June 16 » IBM founded as the Computing-Tabulating-Recording Company in Endicott, New York.
September 29 » Italy declares war on the Ottoman Empire.
November 19 » The Doom Bar in Cornwall claimed two ships, Island Maid and Angele, the latter killing the entire crew except the captain.
Day of marriage July 26, 1940
The temperature on July 26, 1940 was between 8.9 °C and 17.0 °C and averaged 13.6 °C. There was 5.5 mm of rain during 4.1 hours. There was 1.0 hours of sunshine (6%). The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. Source: KNMI
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.
In The Netherlands , there was from September 3, 1940 to July 27, 1941 the cabinet Gerbrandy I, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
April 14 » World War II: Royal Marines land in Namsos, Norway in preparation for a larger force to arrive two days later.
May 6 » John Steinbeck is awarded the Pulitzer Prize for his novel The Grapes of Wrath.
June 23 » Adolf Hitler goes on a three-hour tour of the architecture of Paris with architect Albert Speer and sculptor Arno Breker in his only visit to the city.
September 9 » Treznea Massacre in Transylvania.
November 16 » World War II: In response to the leveling of Coventry by the German Luftwaffe two days before, the Royal Air Force bombs Hamburg.
November 22 » World War II: Following the initial Italian invasion, Greek troops counterattack into Italian-occupied Albania and capture Korytsa.
When copying data from this family tree, please include a reference to the origin: Gert Jonker, "Family tree Jonker", database, Genealogy Online (https://www.genealogieonline.nl/jonker_stamboom/I18522.php : accessed February 27, 2026), "Jan Piket (1911-)".
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