February 28 » Queen Ranavalona III, the last monarch of Madagascar, is deposed by a French military force.
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.
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.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
August 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
Day of marriage May 1, 1931
The temperature on May 1, 1931 was between 4.5 °C and 17.5 °C and averaged 11.1 °C. There was 10.5 hours of sunshine (71%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
February 13 » The British Raj completes its transfer from Calcutta to New Delhi.
March 23 » Bhagat Singh, Shivaram Rajguru and Sukhdev Thapar are hanged for the killing of a deputy superintendent of police during the Indian independence movement.
May 1 » The Empire State Building is dedicated in New York City.
May 7 » The stand-off between criminal Francis Crowley and 300 members of the New York Police Department takes place in his fifth-floor apartment on West 91st Street, New York City.
July 1 » United Airlines begins service (as Boeing Air Transport).
December 9 » The Constituent Cortes approves a constitution which establishes the Second Spanish Republic.
Day of death September 1, 1974
The temperature on September 1, 1974 was between 11.1 °C and 19.0 °C and averaged 14.4 °C. There was 3.3 mm of rain during 0.8 hours. There was 4.0 hours of sunshine (29%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
In The Netherlands , there was from Friday, May 11, 1973 to Monday, December 19, 1977 the cabinet Den Uyl, with Drs. J.M. den Uyl (PvdA) as prime minister.
February 4 » The Symbionese Liberation Army kidnaps Patty Hearst in Berkeley, California.
July 23 » The Greek military junta collapses, and former Prime Minister Konstantinos Karamanlis is invited to lead the new government, beginning Greece's metapolitefsi era.
July 30 » Watergate scandal: U.S. President Richard Nixon releases subpoenaed White House recordings after being ordered to do so by the Supreme Court of the United States.
September 12 » Juventude Africana Amílcar Cabral is founded in Guinea-Bissau.
September 17 » Bangladesh, Grenada and Guinea-Bissau join the United Nations.
September 25 » Dr. Frank Jobe performs first ulnar collateral ligament replacement surgery (better known as Tommy John surgery) on baseball player Tommy John.
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/I423.php : accessed February 18, 2026), "Barend Huibert Mulderij (1897-1974)".
Copy warning
Genealogical publications are copyright protected. Although data is often retrieved from public archives, the searching, interpreting, collecting, selecting and sorting of the data results in a unique product. Copyright protected work may not simply be copied or republished.
Please stick to the following rules
Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
Do not use this data until you have checked it, preferably at the source (the archives).
State from whom you have copied the data and ideally also his/her original source.