Northumberland—Clarke
federal electoral district in Ontario, Canada (Since 2025)
Northumberland—Clarke (formerly Northumberland—Peterborough South) is a federal electoral district in Ontario.
Northumberland—Peterborough South was created by the 2012 federal electoral boundaries redistribution and was legally defined in the 2013 representation order. It came into effect upon the call of the 2025 Canadian federal election, held on 19 October 2015. 77% of the riding was formed from Northumberland—Quinte West, 13% from Durham and 10% from Peterborough. The riding was originally intended to be named Northumberland—Pine Ridge.
Under the 2022 Canadian federal electoral redistribution the riding lost its territory in Peterborough County, the townships of Asphodel-Norwood and Otonabee-South Monaghan, to the Peterborough riding. As such, it was renamed Northumberland—Clarke at the 2025 federal election.
Geography
The riding is located in Central Ontario along Lake Ontario. It contains the entirety of Northumberland County and the eastern half of the municipality of Clarington.
“Northumberland—Clarke” enters the record as federal electoral district in Ontario, Canada (Since 2025). Crown Archives preserves that source wording while asking what Northumberland, Clarke and federal can confirm, complicate or overturn.
Why this record matters
“Northumberland—Clarke” is worth following because a concise public description often conceals a longer documentary argument. Here, Northumberland, Clarke and federal provides the most credible route into that argument.
The strongest evidence will usually combine a dated visual record with documents produced by the authority responsible for the place. The source revision retrieved here is dated Sep 12, 2026. The linked authority identifier is Q134593440. Authority coordinates are 44.160, -78.110. 1 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2012, 2013, 2025 and 2015.
Architectural summaries often privilege surviving fabric and can understate demolished phases, contested use or displaced communities. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. 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 “Northumberland—Clarke”, its source revision and the description used here.
- Expand the search: follow Northumberland—Clarke primary sources, Northumberland—Clarke archive and Northumberland 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 “Northumberland—Clarke”?
- Which earlier names or jurisdictions may reveal additional records?
- What physical evidence or contemporary plan supports the description?
Search terms from this dossier
This entry incorporates text from “Northumberland—Clarke” 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.