CACrown ArchivesThe cinema collection
Menu
Research dossier · History & Society

Black Diamond Cheese

Canadian cheese manufacturing company

Layered newspapers, civic records and oral-history reels arranged as chronological evidence
History and societyInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 15, 2026
Entity authorityQ4920654 ↗
Source-derived summary

Black Diamond Cheese Limited is a cheese manufacturing company in Canada.

Black Diamond employs approximately 470 people at its factory in Belleville, Ontario, and its products can be found at most major retailers in Canada. The company has been owned by Parmalat Canada (Lactalis Canada) since 1998. In the United States, the brand is licensed to DCI Cheese in Wisconsin.

History

Black Diamond, initially named Belleville Cheddar Cheese Limited, was established in 1933 by Robert F. Hart, originally for the purpose of exporting aged Canadian cheddar to the British market, thus making it the first brand-name cheddar in Canada.

Black Diamond was purchased by Brooke Bond in 1968. In 1984, Brooke Bond became part of Unilever, which divested Black Diamond to Canada Packers in 1987. Canada Packers then sold the plant to major dairy Ault Foods in 1991, which after several divestments was sold to Parmalat Canada in 1997.

In 2011, Groupe Lactalis acquired Parmalat, therefore making Parmalat Canada a subsidiary of the France-based Lactalis.

References

External links

Black Diamond Official Website

Parmalat Canada Website

DCI Cheese Website

[1] From the Johnston Library, an essay written in 1967.

Editorial summary

“Black Diamond Cheese” enters the record as canadian cheese manufacturing company. Crown Archives preserves that source wording while asking what Black, Diamond and Cheese can confirm, complicate or overturn.

Editorial reviewA useful synthesis for locating the documentary relationships between formal authority, participants and affected communities. The current lead gives the account dated anchors—1998, 1933, 1968, 1984—that can be checked directly. The selected authority fields contribute no independent date. Its strongest next move is a source search built around Black, Diamond and Cheese.
Editorial analysis

Why this record matters

“Black Diamond Cheese” is worth following because a concise public description often conceals a longer documentary argument. Here, Black, Diamond and Cheese provides the most credible route into that argument.

Evidence profile

Contemporary correspondence, administrative files and participant testimony can test how later narratives organized the event or institution. The source revision retrieved here is dated Sep 15, 2026. The linked authority identifier is Q4920654. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1998, 1933, 1968 and 1984.

Critical limits

Official terminology may obscure informal participation, dissent or communities documented only indirectly. 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

Compare institutional narratives with records created by participants and affected communities. Dates and formal titles are useful anchors, but not substitutes for context.

Best used for
  • Event chronology
  • Institutional context
  • Locating named record creators
Verify next

Contemporary correspondence, government or organizational records, oral histories and cited historical scholarship.

Three-step research path

  1. Establish the record: confirm the title “Black Diamond Cheese”, its source revision and the description used here.
  2. Expand the search: follow Black Diamond Cheese primary sources, Black Diamond Cheese archive and Black research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Black Diamond Cheese”?
  2. Which voices are present, absent or mediated by the institution?
  3. What chronology connects this entry to wider political or social change?
Subject index

Search terms from this dossier

Source & attribution

This entry incorporates text from “Black Diamond Cheese” 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.