Laddonia, Missouri
city in Audrain County, Missouri, United States
Laddonia is a city in Audrain County, Missouri, United States. The population was 502 at the 2020 census.
History
Laddonia was laid out in 1871. It was named for Amos Ladd, an early settler, and his wife, Onia. A post office has been in operation at Laddonia since 1871.
Geography
Laddonia is located at 39°14′25″N 91°38′37″W (39.240331, -91.643501).
According to the United States Census Bureau, the city has a total area of 0.65 square miles (1.68 km2), all land.
Demographics
2010 census
As of the census of 2010, there were 513 people, 226 households, and 140 families living in the city. The population density was 789.2 inhabitants per square mile (304.7/km2). There were 274 housing units at an average density of 421.5 per square mile (162.7/km2).
Begin with the source’s own compact description: “Laddonia, Missouri” is city in Audrain County, Missouri, United States. The dossier treats that line as a proposition to test through Laddonia, Missouri and city, not as a finished interpretation.
Why this record matters
The phrase “city in Audrain County, Missouri, United States” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
Place names and jurisdictional language are key evidence: both can reveal earlier catalogue descriptions and overlooked record series. The source revision retrieved here is dated Sep 9, 2026. The linked authority identifier is Q953077. VIAF identifies the subject as 130187685. The Library of Congress control number is n80130203. Authority coordinates are 39.240, -91.644. 2 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2020, 1871 and 2010.
Architectural summaries often privilege surviving fabric and can understate demolished phases, contested use or displaced communities. 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
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “Laddonia, Missouri”, its source revision and the description used here.
- Expand the search: follow Laddonia, Missouri primary sources, Laddonia, Missouri archive and Laddonia research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Laddonia, Missouri”?
- Which earlier names or jurisdictions may reveal additional records?
- Which authority defined the place, boundary or structure at the relevant date?
Search terms from this dossier
This entry incorporates text from “Laddonia, Missouri” 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.