January 31 » Czechoslav Trade Union Association is founded in Prague.
April 18 » The Greco-Turkish War is declared between Greece and the Ottoman Empire.
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.
July 11 » Salomon August Andrée leaves Spitsbergen to attempt to reach the North Pole by balloon. He later crashes and dies.
September 12 » Tirah Campaign: In the Battle of Saragarhi, ten thousand Pashtun tribesmen suffer several hundred casualties while attacking 21 Sikh soldiers in British service.
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.
Day of marriage July 31, 1924
The temperature on July 31, 1924 was between 11.5 °C and 20.8 °C and averaged 16.0 °C. There was 6.5 hours of sunshine (42%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. 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.
February 12 » George Gershwin's Rhapsody in Blue received its premiere in a concert titled "An Experiment in Modern Music", in Aeolian Hall, New York, by Paul Whiteman and his band, with Gershwin playing the piano.
March 16 » In accordance with the Treaty of Rome, Fiume becomes annexed as part of Italy.
April 1 » The Royal Canadian Air Force is formed.
August 28 » The Georgian opposition stages the August Uprising against the Soviet Union.
October 25 » The Zinoviev letter, which Zinoviev himself denied writing, is published in the Daily Mail; the Labour party would later blame this letter for the Conservatives' landslide election win four days later.
December 1 » The National Hockey League's first United States-based franchise, the Boston Bruins, played their first game in league play at home, at the still-extant Boston Arena indoor hockey facility.
When copying data from this family tree, please include a reference to the origin: Elly Gelderman, "Family tree Gelderman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-gelderman/I11907.php : accessed February 15, 2026), "Gezina Harmina (Gezina Harmina ) Luth (1897-????)".
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