Thomas Willson
Canadian inventor (1860–1915)
Thomas Leopold "Carbide" Willson (March 14, 1860 – December 20, 1915) was a Canadian inventor.
Biography
Willson was born on a farm near Princeton, Canada West, on March 14, 1860, and went to school in Hamilton, Ontario. By the age of 21, he had designed and patented the first electric arc lamps used in Hamilton. He moved to the United States in search of opportunities to sell his ideas.
In 1892, Willson discovered an economically efficient process for creating calcium carbide, which is used in the production of acetylene gas. In 1895, he sold his patent to Union Carbide.
In the same year, Willson married Mary Parks in California and moved back to Canada. He built a house for his mother in Woodstock, Ontario in 1895. During 1900 and 1901, he moved to Ottawa and opened carbide plants both in Ontario (Merritton and Ottawa) and Quebec (Shawinigan). In 1911, he founded the International Marine Signal Company to manufacture marine buoys and lighthouse beacons.
This brief starts where responsible research should: with the source description of “Thomas Willson” as canadian inventor (1860–1915). Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the people & ideas register because the source frames it as canadian inventor (1860–1915). Its deeper value depends on whether names, dates, institutions and citations support that framing.
Biographical claims are most persuasive when dates, appointments and relationships can be traced to records created close to the events described. The source revision retrieved here is dated Sep 16, 2025. The linked authority identifier is Q7795218. The first chronological checks are 1860, 1915, 1892 and 1895.
A concise life account rarely captures disputed attribution, private networks or the changing language used to describe a career. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Read biographical claims against dates, named institutions and the cited references. Distinguish a subject’s later reputation from evidence produced during their lifetime.
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Personal papers, civil or court records, institutional files and the scholarship cited by the source.
Three-step research path
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Questions for further research
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This entry incorporates text from “Thomas Willson” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.