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photo courtesy Utah State Historical Society Tribune negative collection JD Moore works at Salt Lake City's Vitro Chemical Plant photo courtesy Utah State Historical Society Tribune negative collection Workers at Salt Lake City's Vitro Chemical Plant are see photo courtesy Utah State Historical Society Tribune negative collection Workers at Salt Lake City's Vitro Chemical Plant are see photo courtesy Utah State Historical Society Tribune negative collection M.G. McGrath is seen at Salt Lake City's Vitro Chemical photo courtesy Utah State Historical Society Tribune negative collection Salt Lake City's Vitro Chemical Plant is seen in this ph photo courtesy Utah State Historical Society Tribune negative collection Salt Lake City's Vitro Chemical Plant is seen in this ph photo courtesy Utah State Historical Society Tribune negative collection Salt Lake City's Vitro Chemical Plant is seen in this ph photo courtesy Utah State Historical Society Tribune negative collection Ernest Webster was injured in an explosion at Salt Lake photo courtesy Utah State Historical Society Tribune negative collection JD Moore works at Salt Lake City's Vitro Chemical Plant