April 14 » James Cash Penney opens his first store in Kemmerer, Wyoming.
April 18 » The 7.5 Mw Guatemala earthquake shakes Guatemala with a maximum Mercalli intensity of VIII (Severe), killing between 800–2,000.
May 31 » Second Boer War: The Treaty of Vereeniging ends the war and ensures British control of South Africa.
August 22 » Theodore Roosevelt becomes the first President of the United States to make a public appearance in an automobile.
December 14 » The Commercial Pacific Cable Company lays the first Pacific telegraph cable, from San Francisco to Honolulu.
Day of death April 12, 1973
The temperature on April 12, 1973 was between -0.5 °C and 7.1 °C and averaged 3.1 °C. There was 3.3 mm of rain during 1.8 hours. There was 3.7 hours of sunshine (27%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
In The Netherlands , there was from Thursday, July 20, 1972 to Friday, May 11, 1973 the cabinet Biesheuvel II, with Mr. B.W. Biesheuvel (ARP) as prime minister.
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.
January 8 » Soviet space mission Luna 21 is launched.
April 4 » The Twin Towers of the World Trade Center in New York City are officially dedicated.
June 20 » Snipers fire upon left-wing Peronists in Buenos Aires, Argentina, in what is known as the Ezeiza massacre. At least 13 are killed and more than 300 are injured.
June 28 » Elections are held for the Northern Ireland Assembly, which will lead to power-sharing between unionists and nationalists in Northern Ireland for the first time.
July 13 » Watergate scandal: Alexander Butterfield reveals the existence of a secret Oval Office taping system to investigators for the Senate Watergate Committee.
December 28 » The United States Endangered Species Act is signed into law by Pres. Richard Nixon.
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/I135480.php : accessed October 25, 2026), "Petrus Herder (1902-1973)".
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.