Title and statement of responsibility area
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Canadian Gypsum Company Mining and Transportation technical plans
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Fonds
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Physical description
160 sheets of plans: original drawings, tracings, and blueprints.
1 map, published.
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Archival description area
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Administrative history
The Canadian Gypsum Company began in 1907 in Windsor, NS as a private business quarrying and exporting gypsum rock from Nova Scotia to the United States. In the early 1920s it became part of the United States Gypsum Company (USG) but operated in Canada under its own name. In 1926 the Canadian Gypsum Company absorbed the nearby Wentworth Gypsum Company (begun in 1875) and a year later the Newport Plaster Mining and Manufacturing Company (begun in 1912) was added. Starting in 1962 it operated as the Fundy Gypsum Company, still a part of the larger holding company USG, until the plant in Windsor was closed in November 2011, ending gypsum mining operations in Nova Scotia. As of April 2019, the Canadian Gypsum Company (called CGC Inc.) and its parent United States Gypsum are both part of Knauf Group.
Custodial history
The plans were in the possession of Mattheus Holleman (1948-2018) who was a geologist and employee with CGC Inc.’s Fundy Gypsum Plant in Windsor, NS from circa 1979 until its closure in 2011. They were acquired by Nova Scotia Archives in 2019 through private donation by Alice Holleman, widow of Mattheus Holleman.
Scope and content
Fonds consists of tracings and original drawings of property surveys and plot plans for the town of Windsor NS and nearby communities showing gypsum quarries, rail lines and landowners’ plots (1853-1938 and undated); original topographical survey drawings of the Avon and St. Croix Rivers showing low and high tide marks for Windsor-Hantsport-Summerville area (1940-1944); and blueprints and copies on linen of technical plans for barge ships including the DANIEL M. MUNRO, and the MUMFORD, as well as technical plans for a ship’s marine engine from Johnson Iron Co. Ltd. of Yarmouth (1919-1942). Companies represented include Wentworth Gypsum Co., Newport Plaster Mining and Manufacturing Co., the Canadian Gypsum Co., and its parent the United States Gypsum Co.
Fonds also includes a 1922 map of the world showing trade routes between Canadian and Foreign ports published by the Canadian Department of the Interior (1922); black & white photographic copies of geology maps of Avondale, Hantsport, Miller Creek, St. Croix, Upper Falmouth, and Windsor (1948); and undated topographical maps of Windsor area quarries.
The material documents the mining management activities of Canadian Gypsum Company and its parent United States Gypsum Co. as they created topographical survey plans of their quarries and other assets for mining gypsum rock; studied water levels and ships’ drafts to calculate their loading capacities; and built or retrofitted ships to transport the rock to the United States and elsewhere.
Notes area
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Language of material
- English
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See Nova Scotia Archives’ Services page for information on copying, reproduction, and use of materials https://archives.novascotia.ca/copying-services/