April 30 » J. J. Thomson of the Cavendish Laboratory announces his discovery of the electron as a subatomic particle, over 1,800 times smaller than a proton (in the atomic nucleus), at a lecture at the Royal Institution in London.
May 26 » Dracula, a Gothic horror novel by Irish author Bram Stoker, is published.
June 22 » British colonial officers Charles Walter Rand and Lt. Charles Egerton Ayerst are assassinated in Pune, Maharashtra, India by the Chapekar brothers and Mahadeo Vinayak Ranade, who are later caught and hanged.
August 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
November 1 » The first Library of Congress building opens its doors to the public; the library had previously been housed in the Congressional Reading Room in the U.S. Capitol.
December 9 » Activist Marguerite Durand founds the feminist daily newspaper La Fronde in Paris.
Day of death July 31, 1967
The temperature on July 31, 1967 was between 16.9 °C and 27.0 °C and averaged 21.5 °C. There was 0.1 mm of rain during 0.1 hours. There was 8.8 hours of sunshine (56%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
January 14 » Counterculture of the 1960s: The Human Be-In takes place in San Francisco, California's Golden Gate Park, launching the Summer of Love.
March 9 » Trans World Airlines Flight 553 crashes in a field in Concord Township, Ohio following a mid-air collision with a Beechcraft Baron, killing 26 people.
March 18 » The supertanker Torrey Canyon runs aground off the Cornish coast.
May 17 » Six-Day War: President Gamal Abdel Nasser of Egypt demands dismantling of the peace-keeping UN Emergency Force in Egypt.
July 24 » During an official state visit to Canada, French President Charles de Gaulle declares to a crowd of over 100,000 in Montreal: Vive le Québec libre! ("Long live free Quebec!"); the statement angered the Canadian government and many Anglophone Canadians.
October 29 » Montreal's World Fair, Expo 67, closes with over 50 million visitors.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I22029.php : accessed October 4, 2026), "Beitske Tjoelker (1897-1967)".
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