St. Thomas Municipal Airport (Ontario)
airport in Ontario, Canada
St. Thomas Municipal Airport (IATA: YQS, ICAO: CYQS) located 3.5 nautical miles (6.5 km; 4.0 mi) east of St. Thomas, Ontario, Canada is a small airport serving the general aviation needs of the area. It was established in 1941 as an air training base for the British Commonwealth Air Training Program. The base was operated by the Department of National Defence until the late 1940s as a relief field for No. 14 Service Flying Training School Aylmer, Ontario and No. 4 Bombing & Gunnery School Fingal, Ontario. It has three runways, and four IFR approaches.
The airport is classified as an airport of entry by Nav Canada and is staffed by the Canada Border Services Agency (CBSA) on a call-out basis from the London International Airport. CBSA officers at this airport can handle general aviation aircraft only, with no more than 15 passengers.
This brief starts where responsible research should: with the source description of “St. Thomas Municipal Airport (Ontario)” as airport in Ontario, Canada. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the places & architecture register because the source frames it as airport in Ontario, Canada. Its deeper value depends on whether names, dates, institutions and citations support that framing.
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 Jul 7, 2026. The linked authority identifier is Q3914971. Authority coordinates are 42.770, -81.110. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1941.
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 “St. Thomas Municipal Airport (Ontario)”, its source revision and the description used here.
- Expand the search: follow St. Thomas Municipal Airport (Ontario) primary sources, St. Thomas Municipal Airport (Ontario) archive and Thomas 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 “St. Thomas Municipal Airport (Ontario)”?
- 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 “St. Thomas Municipal Airport (Ontario)” 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.