The temperature on June 23, 1913 was between 9.1 °C and 20.5 °C and averaged 16.5 °C. There was 5.9 hours of sunshine (35%). The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from February 12, 1908 to August 29, 1913 the cabinet Heemskerk, with Mr. Th. Heemskerk (AR) as prime minister.
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.
February 17 » The Armory Show opens in New York City, displaying works of artists who are to become some of the most influential painters of the early 20th century.
April 8 » The 17th Amendment to the United States Constitution, requiring direct election of Senators, becomes law.
June 1 » The Greek–Serbian Treaty of Alliance is signed, paving the way for the Second Balkan War.
June 4 » Emily Davison, a suffragette, runs out in front of King George V's horse at The Derby. She is trampled, never regains consciousness, and dies four days later.
July 3 » Confederate veterans at the Great Reunion of 1913 reenact Pickett's Charge; upon reaching the high-water mark of the Confederacy they are met by the outstretched hands of friendship from Union survivors.
August 13 » First production in the UK of stainless steel by Harry Brearley.
Day of marriage June 9, 1942
The temperature on June 9, 1942 was between 4.6 °C and 15.9 °C and averaged 11.1 °C. There was 8.4 hours of sunshine (51%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. 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 24 » World War II: The Allies bombard Bangkok, leading Thailand, then under Japanese control, to declare war against the United States and United Kingdom.
March 29 » The Bombing of Lübeck in World War II is the first major success for the RAF Bomber Command against Germany and a German city.
August 6 » Queen Wilhelmina of the Netherlands becomes the first reigning queen to address a joint session of the United States Congress.
September 15 » World War II: U.S. Navy aircraft carrier USSWasp is sunk by Japanese torpedoes at Guadalcanal.
November 19 » World War II: Battle of Stalingrad: Soviet Union forces under General Georgy Zhukov launch the Operation Uranus counterattacks at Stalingrad, turning the tide of the battle in the USSR's favor.
December 22 » World War II: Adolf Hitler signs the order to develop the V-2 rocket as a weapon.
Day of death February 28, 1991
The temperature on February 28, 1991 was between 0.8 °C and 4.2 °C and averaged 2.3 °C. There was 1.5 mm of rain during 2.6 hours. The almost completely overcast was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-southeast. Source: KNMI
In The Netherlands , there was from Tuesday, November 7, 1989 to Monday, August 22, 1994 the cabinet Lubbers III, with Drs. R.F.M. Lubbers (CDA) as prime minister.
February 24 » Gulf War: Ground troops cross the Saudi Arabian border and enter Iraq, thus beginning the ground phase of the war.
June 27 » Slovenia, after declaring independence two days before is invaded by Yugoslav troops, tanks, and aircraft starting the Ten-Day War.
August 24 » Ukraine declares itself independent from the Soviet Union.
September 29 » A Haitian coup d'état occurs.
November 18 » Shiite Muslim kidnappers in Lebanon release Anglican Church envoys Terry Waite and Thomas Sutherland.
December 8 » The leaders of Russia, Belarus and Ukraine sign an agreement dissolving the Soviet Union and establishing the Commonwealth of Independent States.
Day of burial March 4, 1991
The temperature on March 4, 1991 was between -1.8 °C and 13.0 °C and averaged 6.4 °C. There was -0.1 mm of rain. There was 5.4 hours of sunshine (49%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south east. Source: KNMI
In The Netherlands , there was from Tuesday, November 7, 1989 to Monday, August 22, 1994 the cabinet Lubbers III, with Drs. R.F.M. Lubbers (CDA) as prime minister.
February 18 » The IRA explodes bombs in the early morning at Paddington station and Victoria station in London.
May 16 » Queen Elizabeth II of the United Kingdom addresses a joint session of the United States Congress. She is the first British monarch to address the U.S. Congress.
July 31 » The United States and Soviet Union both sign the START I Strategic Arms Reduction Treaty, the first to reduce (with verification) both countries' stockpiles.
August 27 » The European Community recognizes the independence of the Baltic states of Estonia, Latvia and Lithuania.
December 26 » The Supreme Soviet of the Soviet Union meets and formally dissolves the Soviet Union, ending the Cold War.
December 31 » All official Soviet Union institutions have ceased operations by this date five days after the Soviet Union is officially dissolved.
When copying data from this family tree, please include a reference to the origin: E. Hillebregt - Zuiderwijk, "Family tree Scheffer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-scheffer/I461.php : accessed October 3, 2026), "Harm Jan (Hermanus Johannes) Halfwerk (1913-1991)".
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.