March 14 » Pelican Island National Wildlife Refuge, the first national wildlife refuge in the US, is established by President Theodore Roosevelt.
April 29 » A landslide kills 70 people in Frank, in the District of Alberta, Canada.
June 16 » The Ford Motor Company is incorporated.
July 23 » The Ford Motor Company sells its first car.
November 3 » With the encouragement of the United States, Panama separates from Colombia.
December 17 » The Wright brothers make the first controlled powered, heavier-than-air flight in the Wright Flyer at Kitty Hawk, North Carolina.
Day of death June 7, 1975
The temperature on June 7, 1975 was between 11.2 °C and 23.6 °C and averaged 17.8 °C. There was 12.5 hours of sunshine (75%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the east. 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.
April 19 » India's first satellite Aryabhata launched in orbit from Kapustin Yar, Russia.
April 25 » As North Vietnamese forces close in on the South Vietnamese capital Saigon, the Australian Embassy is closed and evacuated, almost ten years to the day since the first Australian troop commitment to South Vietnam.
May 6 » During a lull in fighting, 100,000 Armenians gather in Beirut for the 60th anniversary commemorations of the Armenian Genocide.
June 12 » India, Judge Jagmohanlal Sinha of the city of Allahabad ruled that India's Prime Minister Indira Gandhi had used corrupt practices to win her seat in the Indian Parliament, and that she should be banned from holding any public office. Mrs. Gandhi sent word that she refused to resign.
November 7 » In Bangladesh, a joint force of people and soldiers takes part in an uprising led by Colonel Abu Taher that ousts and kills Brigadier Khaled Mosharraf, freeing the then house-arrested army chief and future president Maj-Gen. Ziaur Rahman.
November 14 » With the signing of the Madrid Accords, Spain abandons Western Sahara.
When copying data from this family tree, please include a reference to the origin: Hans Pruckmuller, "Family tree Van Willigen", database, Genealogy Online (https://www.genealogieonline.nl/van-willigen-stamboom/I18676.php : accessed January 29, 2026), "Coenraad Sack (1903-1975)".
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