January 10 » The first great Texas oil gusher is discovered at Spindletop in Beaumont, Texas.
July 4 » William Howard Taft becomes American governor of the Philippines.
August 6 » Kiowa land in Oklahoma is opened for white settlement, effectively dissolving the contiguous reservation.
August 14 » The first claimed powered flight, by Gustave Whitehead in his Number 21.
September 14 » U.S. President William McKinley dies after being mortally wounded on September 6 by anarchist Leon Czolgosz and is succeeded by Vice President Theodore Roosevelt.
October 12 » President Theodore Roosevelt officially renames the "Executive Mansion" to the White House.
Day of death April 30, 1942
The temperature on April 30, 1942 was between 0.7 °C and 13.4 °C and averaged 7.9 °C. There was 11.6 hours of sunshine (78%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. 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.
January 13 » World War II: First use of an aircraft ejection seat by a German test pilot in a Heinkel He 280 jet fighter.
January 19 » World War II: The Japanese conquest of Burma begins.
March 14 » Anne Miller becomes the first American patient to be treated with penicillin, under the care of Orvan Hess and John Bumstead.
June 5 » World War II: The United States declares war on Bulgaria, Hungary, and Romania.
July 10 » World War II: An American pilot spots a downed, intact Mitsubishi A6M Zero on Akutan Island (the "Akutan Zero") that the US Navy uses to learn the aircraft's flight characteristics.
August 23 » World War II: Beginning of the Battle of Stalingrad.
When copying data from this family tree, please include a reference to the origin: kiwi231, "Family tree Roem", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-roem/I182.php : accessed January 27, 2026), "Johanna Petronella Hopmans (1901-1942)".
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