New York, State Census, 1915, Ancestry.com, New York State Archives; Albany, New York; State Population Census Schedules, 1915; Election District: 01; Assembly District: 02; City: Rensselaer Ward 01; County: Rensselaer; Page: 21 / Ancestry.com
April 30 » J. J. Thomson of the Cavendish Laboratory announces his discovery of the electron as a subatomic particle, over 1,800 times smaller than a proton (in the atomic nucleus), at a lecture at the Royal Institution in London.
June 16 » A treaty annexing the Republic of Hawaii to the United States is signed; the Republic would not be dissolved until a year later.
July 11 » Salomon August Andrée leaves Spitsbergen to attempt to reach the North Pole by balloon. He later crashes and dies.
August 31 » Thomas Edison patents the Kinetoscope, the first movie projector.
September 10 » Lattimer massacre: A sheriff's posse kills 19 unarmed striking immigrant miners in Lattimer, Pennsylvania, United States.
December 30 » The British Colony of Natal annexes Zululand.
When copying data from this family tree, please include a reference to the origin: David Grant, "Grant Family Tree", database, Genealogy Online (https://www.genealogieonline.nl/grant-family-tree/P200.php : accessed May 10, 2025), "Hattie R Hadsell (± 1860-????)".
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