July 24 » O. Henry is released from prison in Columbus, Ohio, after serving three years for embezzlement from a bank.
August 5 » Peter O'Connor sets the first IAAF recognised long jump world record of 24ft 11.75in (7.6137m), a record that would stand for 20 years.
August 14 » The first claimed powered flight, by Gustave Whitehead in his Number 21.
November 13 » The 1901 Caister lifeboat disaster.
November 27 » The U.S. Army War College is established.
Day of marriage March 31, 1926
The temperature on March 31, 1926 was between -1.0 °C and 12.8 °C and averaged 6.6 °C. There was 8.9 hours of sunshine (69%). The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
May 9 » Admiral Richard E. Byrd and Floyd Bennett claim to have flown over the North Pole (later discovery of Byrd's diary appears to cast some doubt on the claim.)
May 12 » The Italian-built airship Norge becomes the first vessel to fly over the North Pole.
May 25 » Sholom Schwartzbard assassinates Symon Petliura, the head of the government of the Ukrainian People's Republic, which is in government-in-exile in Paris.
May 28 » The 28 May 1926 coup d'état: Ditadura Nacional is established in Portugal to suppress the unrest of the First Republic.
June 23 » The College Board administers the first SAT exam.
August 5 » Harry Houdini performs his greatest feat, spending 91 minutes underwater in a sealed tank before escaping.
When copying data from this family tree, please include a reference to the origin: J. van Broekhoven, "Database Van Broekhoven", database, Genealogy Online (https://www.genealogieonline.nl/database-van-broekhoven/I45827.php : accessed February 9, 2026), "Hermanus de Graaff (1901-)".
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