Scope and Contents Production statistics and extracts from the historical files of the Smokeless Operators Association (until 1958 the Pocahontas Operators Association) showing the history of coal mining in the Pocahontas field and production, sales, and distribution statistics for the years 1930 and 1933-1961. There are weekly, monthly, and yearly reports on net tons produced, hours, worked, and tonnage lost because of labor problems, mine disability, or lack of market. There are lists of the coal companies...