Osborn got its start following the construction of the Hannibal and St. Joseph Railroad through that territory. It was named for Col. William Osborn of Waterville, New York. Col. Osborn, born in Sangerfield, New York on May 9, 1809, was an Oneida National Bank and Trust Company of Central New York commissioner and farmer who, in 1845, relocated to Missouri, where he partnered with the Hannibal and St. Joseph Railroad Company, the firm that constructed the Hannibal and St. Joseph Railroad.
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 Wikimedia Commons (1), the Library of Congress (1), Wikipedia, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia), 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.