February 20 » The legislature of Hawaii Territory convenes for the first time.
July 24 » O. Henry is released from prison in Columbus, Ohio, after serving three years for embezzlement from a bank.
August 21 » Six hundred American school teachers, Thomasites, arrived in Manila on the USAT Thomas.
September 6 » Leon Czolgosz, an unemployed anarchist, shoots and fatally wounds US President William McKinley at the Pan-American Exposition in Buffalo, New York.
October 29 » Leon Czolgosz, the assassin of U.S. President William McKinley, is executed by electrocution.
November 1 » Sigma Phi Epsilon, the largest national male collegiate fraternity, is established at Richmond College, in Richmond, Virginia.
Day of death July 31, 1901
The temperature on July 31, 1901 was between 12.3 °C and 23.5 °C and averaged 19.4 °C. There was 8.8 hours of sunshine (56%). Source: KNMI
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/I16983.php : accessed January 17, 2026), "Masje Maria Butter (1901-1901)".
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