Canadian Johns-Manville was the Canadian arm of the Johns-Manville Corporation, one of the world's largest asbestos producers and product manufacturers. The company operated the massive Jeffrey Mine in Asbestos, Quebec (now the town of Val-des-Sources), and supplied raw chrysotile asbestos fiber to industries across North America and the world for most of the 20th century.
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Origin
Johns-Manville traced its U.S. roots to the 1858 H.W. Johns Manufacturing Company and the 1886 Manville Covering Company, which merged in 1901. Its Canadian operations grew around the Jeffrey Mine, opened in the 1880s and acquired by Johns-Manville in 1916, making the company the dominant force in Quebec's chrysotile industry for decades.
Significance in Asbestos Context
Canadian Johns-Manville was a primary global source of chrysotile asbestos fiber, meaning its product appears in the supply chain of thousands of insulation, cement, textile, friction, and gasket products made throughout the 20th century. Internal corporate documents, including the well-known "Sumner Simpson papers" and Johns-Manville's own medical department records, show that the company knew about asbestos disease risks among miners and workers as early as the 1930s and concealed that knowledge. For patients, this matters because Johns-Manville's bankruptcy in 1982 created the Manville Personal Injury Settlement Trust, one of the largest and earliest asbestos trusts, which still pays claims today. If your exposure history includes insulation, refractory, asbestos cement, or any product likely to have contained Quebec chrysotile, a claim against the Manville Trust is often part of the recovery picture even though the operating company no longer exists in its original form.
Related Terms
Manville Trust, Jeffrey Mine, Chrysotile, Johns-Manville Corporation, Sumner Simpson Papers, Asbestos Bankruptcy Trusts
Notes
- Preserve any employment records, union records, supplier invoices, or product packaging that identify Johns-Manville or "J-M" branded materials. These support both trust claims and litigation.
- Ask older family members or coworkers what brand names appeared on insulation, cement pipe, or transite board at past worksites; Johns-Manville products were extremely common in construction, shipbuilding, refineries, and power plants.
- If you have a confirmed asbestos diagnosis, ask your attorney specifically about filing with the Manville Personal Injury Settlement Trust in addition to any lawsuits against still-solvent defendants.
- Quebec chrysotile from the Jeffrey Mine is frequently identified in fiber-burden and product-sampling analyses; this can be relevant evidence in cases where the defense disputes that chrysotile causes mesothelioma.
Units and subsidiaries
Canadian Johns-Manville Co., Ltd was part of Johns-Manville.
Plants
Plants where asbestos products were made that the documents say Canadian Johns-Manville Co., Ltd ran.
- Canadian Johns-Manville Co., Ltd. and later owners plant at Asbestos, Quebec
- Canadian Johns-Manville Company, Limited plant at Port Union (Scarborough Township), Ontario
- Canadian Johns-Manville plant at Toronto, Ontario
Mines
Asbestos mines the documents name Canadian Johns-Manville Co., Ltd as running or owning.
- Asbestos deposit, near Sligo, Ireland
- Canadian Johns-Manville exploration, between Amos and Barraute, Quebec
- Garrison Township property, Garrison Township, about 13 miles east of the Munro mine, Ontario
- Jeffrey mine, Asbestos, Quebec
- Munro mine, 9 miles east of Matheson, Munro Township, Ontario
- Reeves Township deposit, Reeves Township, 40 miles southwest of Timmins, Ontario
- Temeraire mine, Mashaba, Zimbabwe
In our library
46 documents in our library name Canadian Johns-Manville Co., Ltd, by collection.
JM Knowledge Chronology (44)
- C. H. Shoemaker to S. A. Williams on Dust Collecting at Asbestos, Quebec (1932) (publisher)
- Johns-Manville Release on the Hospital and Accident Prevention at Asbestos, Quebec (1939) (publisher)
- C. M. McGaw to H. K. Sherry on Gardner's Interim Report (1940) (publisher)
- Bell Asbestos Mines to Canadian Johns-Manville Enclosing Union and Company Briefs to the National War Labour Board (1944) (recipient)
- Joan Ross, Survey of Female Employees in the Canadian Johns-Manville Textile Department (1944) (publisher)
- Kenneth Smith to F. G. Lippert on Workers Handling Bags of South African Blue Fibre (1944) (publisher)
- Leroy Gardner to R. H. Stevenson Asking to Review Canadian J-M X-Rays, with H. K. Sherry's Approval (1944) (publisher)
- Canadian Johns-Manville Memo to Headquarters on Stopping Return of Foreign Fibre Jute Bags (1945) (publisher)
- Dr. Kenneth Smith to H. F. Janson on Moving a Mill Worker Out of the Dust (1947) (publisher)
- Dr. Kenneth Smith to Ivan Sabourin on Monthly Meetings with Dr. Cartier (1947) (publisher)
- Canadian Johns-Manville Mine Division Industrial Hygiene Committee Minutes on Mill Dust Control (1948) (publisher)
- Dr. Kenneth W. Smith to George K. Foster Reviewing the Saranac Asbestosis Report (1948) (publisher)
- Dr. Kenneth W. Smith to George K. Foster on Autopsies and Compensation (1948) (publisher)
- Dr. Kenneth W. Smith to J. E. Morrison on Unloading Silica Flour (1948) (publisher)
- Dr. Kenneth W. Smith to W. A. Young on Asbestos and Silica Hazards at the Toronto Plant (1948) (publisher)
- Canadian Johns-Manville Notices to Employees on Contract Talks and the Asbestos Strike (1949) (publisher)
- Canadian Johns-Manville, Facts and Figures about Canadian Johns-Manville (1949) (publisher)
- Dr. Kenneth W. Smith's Public Statement on Health Conditions in Asbestos, Quebec (1949) (publisher)
- Dr. Kenneth W. Smith, Industrial Hygiene Survey of 708 Canadian Johns-Manville Mill Workers (1949) (publisher)
- George K. Foster to A. R. Fisher on a Union Dust Clause in Quebec Arbitration (1949) (publisher)
- Kenneth W. Smith to George K. Foster on the Saranac Report (1949) (publisher)
- T. H. Eaton to R. B. Davies on Wearing Respirators with Silica Flour at the Toronto Plant (1949) (publisher)
- Arthur J. Vorwald and Kenneth W. Smith on Lung Cancer Among Canadian J-M Workers (1950) (publisher)
- Dr. Kenneth W. Smith to H. M. Jackson and C. M. McGaw on Dr. Wright's Findings Without X-Ray Evidence (1950) (publisher)
- George K. Foster to J. P. Woodard on Preparing a Lung Cancer Research Program for the Quebec Asbestos Mining Association (1950) (publisher)
- George K. Foster to Kenneth W. Smith Enclosing Comments on the Saranac Asbestosis Report (1950) (publisher)
- Kenneth W. Smith to Arthur J. Vorwald Enclosing Merewether's Article on the Pneumoconioses (1950) (publisher)
- Kenneth W. Smith to C. M. McGaw on Dr. Lanza's Lung Cancer Study Contract (1950) (publisher)
- Kenneth W. Smith to J. P. Woodard Naming Asbestos and Silica as Possible Causes of Lung Cancer (1950) (publisher)
- Kenneth W. Smith to K. V. Lindell Urging a Study of Asbestos and Lung Cancer (1950) (publisher)
- Kenneth W. Smith to K. V. Lindell on Reporting Asbestosis Under Quebec's New Health Regulations (1950) (publisher)
- Kenneth W. Smith to R. S. Gardner on the Causes of Lung Cancer (1950) (publisher)
- Letters on a Lung Cancer Study Among Quebec Asbestos Workers, June to October 1950 (1950) (publisher)
- C. M. McGaw on Dropping Asbestosis and Lung Cancer from Industrial Hygiene Minutes (1951) (publisher)
- Canadian Johns-Manville Memo on the Medical Program at Asbestos, Quebec (1951) (publisher)
- Dr. Kenneth W. Smith to C. M. McGaw on Waiting for Cancer Results Before Publicizing the Saranac Report (1951) (publisher)
- Dr. Kenneth W. Smith to C. M. McGaw, Report of the Quebec Asbestos Mining Association Meeting at Lake Placid (1951) (publisher)
- Dr. Kenneth W. Smith to Dr. Paul Parrot of the Quebec Ministry of Health on Lung Cancer and Death Certificates (1951) (publisher)
- Canadian Johns-Manville, "Health of Employees at C.J-M" (1953) (publisher)
- Dr. T. R. Grainger to J. E. Morrison on Areas Closed to "B - No Dust" Workers (1953) (publisher)
- H. Rosovsky to J. O. Eby Comparing Travelers and Canadian J-M Fiber Counts (1955) (publisher)
- J. R. M. Hutcheson to G. S. Smith on Dryer Stack Dust Control at Asbestos, Quebec (1959) (publisher)
- B. C. Machin to the Ontario Ministry of Labour Opposing a Lower Limit for Crocidolite (1975) (publisher)
- J. R. D. Wilson's Notice to Toronto Plant Employees on Smoking and Asbestos (1975) (publisher)
Motley 1000 (1)
Other library documents (1)
In the Union Carbide documents
Canadian Johns-Manville Co., Ltd is named in 7 Union Carbide documents dated 1974 to 2001 (7 mentioned), from asbestos lawsuits over Union Carbide's Calidria asbestos. All are published in our collection.
- G. J. Weihs, Chrysotile Asbestos Markets and Forecasts for Group 7 (1974) UC-2638 (mentioned)
- G. J. Weihs, Chrysotile Asbestos, Group 7 (Shorts): Market Analysis and Forecasts (1974) Union Carbide 278 (mentioned)
- G. J. Weihs, Chrysotile Asbestos (Group 7, Shorts) Market Analysis, Union Carbide Marketing Services Department (1974) UC-209 (mentioned)
- G. J. Weihs, Chrysotile Asbestos, Group 7 (Shorts): Market Analysis, with Morgan Guaranty Transmittal Letter to W. C. Thurber (1974) UC-1509 (mentioned)
- G. J. Weihs, Chrysotile Asbestos (Group 7, Shorts) Market Analysis for Union Carbide Marketing Services (1974) UC-4630 (mentioned)
- W. G. Kahler II to T. R. Alexander and Others on DOT Docket HM-160, Transportation of Asbestos, with Commenter Lists and DOT Regulatory Evaluation (1979) UC-3329 (mentioned)
- United States Gypsum Company's Responses to Standard Interrogatories in Karal v. Atlas Turner, Inc., with Exhibits 1-9 (2001) UC-5456 (mentioned)
Names in the documents
The spellings documents use for Canadian Johns-Manville Co., Ltd, OCR misreadings included, so a search for any of them finds this page: Canadian Johns-Manville · Canadian Johns-Manville Company · Canadian Johns-Manville Company, Ltd. · Canadian Johns Manville Company Ltd.
Where this comes from
This page brings together every document in our library that names Canadian Johns-Manville Co., Ltd, across collections. Titles and affiliations are taken from the documents themselves, and units and subsidiaries are grouped under the company they belong to.
Mentioned on this site
Cite this page
“Canadian Johns-Manville Co., Ltd.” AsbestosClaims.Law Library. https://asbestosclaims.law/library/organizations/canadian-johns-manville-co-ltd.
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