Johns-Manville Charts of Its Mines, Mills and Corporate Subsidiaries (1978)

Four pages of undated Johns-Manville charts. The first, "Mines and Mills," names J-M's major mining location, Johns-Manville Canada Inc. at Asbestos, Quebec, and its interests in other mines: Advocate Mines at Baie Verte, Newfoundland (about 40 percent owned, with Eternit and J-M its "only customers"), the wholly owned Reeves (about 1970-1975) and Munro (about 1957-1964) mines in Ontario, and Coalinga Asbestos Company in California, 80 percent owned by Johns-Manville Sales Corporation and mining chrysotile from March 1962 to June 1974. The other pages list J-M's Canadian and U.S. corporate entities and subsidiaries with their places and dates of formation.

What it shows

The corporate pages give, among others, the Asbestos and Danville Railway Company (formed 1897), Advocate Mines Limited (1960), Jayem Exploration Company (1961), Johns-Manville Products Corporation (1927) and Johns-Manville Sales Corporation (1929). The latest date on them is the formation of Johns-Manville Canada Inc. in January 1978, so the charts were made in 1978 or later, probably by J-M's legal department for asbestos lawsuits. The same "Mines and Mills" page heads J-M's interrogatory answers on its mines, and a memo of April 1978 gives the same facts (Diemer to Markusson).