The first post office opened at Canby in 1874. The town was named in honor of General Edward Canby, who was shot by the Modoc tribal leader Captain Jack at a peacemaking session as part of the Modoc War. This shooting lead to the siege at Captain Jack's Stronghold.
Until the late 1940s, Canby was the site of Big Lakes Box Company and the supply point for Big Lakes Logging Camp in the Adin Mountains about 10 miles (16 km) to the southeast, where conditions were primitive.
About 9.3 mi (15 km) northwest of Canby is a California Historical Landmark number #111 about the Old Emigrant Trail.
Founding dates: Wikidata, Wikipedia, the U.S. post office records of Blevins & Helbock (CC0) and the Census. Homes by year built: Census ACS 2020–24. National Register of Historic Places: National Park Service (list of May 22, 2026). Old photos, postcards and papers: Wikimedia Commons, the Library of Congress and other public archives, credited on each item’s page. Maps: U.S. Geological Survey historical topographic maps (via Esri) and Sanborn fire-insurance maps (Library of Congress). History text and census tables: Wikipedia (CC BY-SA 4.0). Places that used to be: USGS Geographic Names Information System (2021). How TownRatings grades history →
From Wikipedia, Wikidata and Wikipedia for famous people, U.S. Geological Survey historical maps, the US Post Offices dataset (Blevins & Helbock) and the USGS Geographic Names Information System. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.