An undated photograph identified as fire boss Jones testing for gas after a fall of top [roof] at the Williamstown Mines, Williamstown, Dauphin County, Pennsylvania.
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Photo from the Sesquicentennial History of Williamstown and Williams Township, Dauphin County, Pennsylvania, published in 1976. For availability of copies of this book, contact the Williamstown and Williams Township Historical Society, 115 W. Market Street, Williamstown, Pennsylvania 17098.
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