January 31 » Czechoslav Trade Union Association is founded in Prague.
April 18 » The Greco-Turkish War is declared between Greece and the Ottoman Empire.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
July 11 » Salomon August Andrée leaves Spitsbergen to attempt to reach the North Pole by balloon. He later crashes and dies.
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.
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 May 16, 1917
The temperature on May 16, 1917 was between 9.3 °C and 12.9 °C and averaged 10.3 °C. There was 2.3 hours of sunshine (15%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
January 19 » Silvertown explosion: A blast at a munitions factory in London kills 73 and injures over 400. The resulting fire causes over £2,000,000 worth of damage.
February 5 » The current constitution of Mexico is adopted, establishing a federal republic with powers separated into independent executive, legislative, and judicial branches.
March 25 » The Georgian Orthodox Church restores its autocephaly abolished by Imperial Russia in 1811.
July 31 » World War I: The Battle of Passchendaele begins near Ypres in West Flanders, Belgium.
October 24 » First World War: Italy suffers a disastrous defeat on the Austro-Italian front.
October 25 » Old Style date of the October Revolution in Russia.
Day of death December 15, 1942
The temperature on December 15, 1942 was between 4.9 °C and 9.9 °C and averaged 7.2 °C. There was 2.0 mm of rain during 1.8 hours. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
February 1 » World War II: U.S. Navy conducts Marshalls-Gilberts raids, the first offensive action by the United States against Japanese forces in the Pacific Theater.
February 19 » World War II: United States President Franklin D. Roosevelt signs executive order 9066, allowing the United States military to relocate Japanese Americans to internment camps.
April 18 » World War II: The Doolittle Raid on Japan: Tokyo, Yokohama, Kobe and Nagoya are bombed.
June 28 » World War II: Nazi Germany starts its strategic summer offensive against the Soviet Union, codenamed Case Blue.
July 18 » World War II: During the Beisfjord massacre in Norway, 15 Norwegian paramilitary guards help members of the SS to kill 288 political prisoners from Yugoslavia.
November 3 » World War II: The Koli Point action begins during the Guadalcanal Campaign and ends on November 12.
When copying data from this family tree, please include a reference to the origin: Ton Ross, "Family tree Ross - Peters - Hart - van der Willigen", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-ross/I342.php : accessed February 19, 2026), "Willem Ephraim (1897-1942)".
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.