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 16 » A treaty annexing the Republic of Hawaii to the United States is signed; the Republic would not be dissolved until a year later.
September 11 » After months of pursuit, generals of Menelik II of Ethiopia capture Gaki Sherocho, the last king of Kaffa, bringing an end to that ancient kingdom.
December 6 » London becomes the world's first city to host licensed taxicabs.
December 30 » The British Colony of Natal annexes Zululand.
Day of marriage August 11, 1923
The temperature on August 11, 1923 was between 8.2 °C and 21.7 °C and averaged 15.1 °C. There was 7.2 hours of sunshine (48%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northwest. Source: KNMI
In The Netherlands , there was from September 19, 1922 to August 4, 1925 the cabinet Ruys de Beerenbrouck II, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 9 » Juan de la Cierva makes the first autogyro flight.
June 9 » Bulgaria's military takes over the government in a coup.
August 2 » Vice President Calvin Coolidge becomes U.S. President upon the death of President Warren G. Harding.
August 23 » Captain Lowell Smith and Lieutenant John P. Richter performed the first mid-air refueling on De Havilland DH-4B, setting an endurance flight record of 37 hours.
September 1 » The Great Kantō earthquake devastates Tokyo and Yokohama, killing about 105,000 people.
September 12 » Southern Rhodesia, today called Zimbabwe, is annexed by the United Kingdom.
Day of death October 15, 1951
The temperature on October 15, 1951 was between 2.5 °C and 15.0 °C and averaged 8.0 °C. There was 8.5 hours of sunshine (79%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
From August 7, 1948 till March 15, 1951 the Netherlands had a cabinet Drees - Van Schaik with the prime ministers Dr. W. Drees (PvdA) and Mr. J.R.H. van Schaik (KVP).
In The Netherlands , there was from March 15, 1951 to September 2, 1952 the cabinet Drees I, with Dr. W. Drees (PvdA) as prime minister.
January 4 » Korean War: Chinese and North Korean forces capture Seoul.
January 31 » United Nations Security Council Resolution 90 relating to Korean War is adopted.
February 6 » The Broker, a Pennsylvania Railroad passenger train derails near Woodbridge Township, New Jersey. The accident kills 85 people and injures over 500 more. The wreck is one of the worst rail disasters in American history.
March 29 » Ethel and Julius Rosenberg are convicted of conspiracy to commit espionage.
May 21 » The opening of the Ninth Street Show, otherwise known as the 9th Street Art Exhibition: A gathering of a number of notable artists, and the stepping-out of the post war New York avant-garde, collectively known as the New York School.
November 10 » With the rollout of the North American Numbering Plan, direct-dial coast-to-coast telephone service begins in the United States.
When copying data from this family tree, please include a reference to the origin: J. Ham, "Family tree Ham", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-ham/I42958.php : accessed January 29, 2026), "Willemina Cornelia de Jong (1897-1951)".
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