"The Hercules Powder Company's plant consists of a number of substantial buildings scattered over a 500 acre tract. The capacity is 1800 twenty-five pound kegs of Blasting Powder daily. Seventy-five to ninety men are employed. The pay roll averages $60,000.00 per year at full running capacity." - Prosperous Pittsburg Pictorially Portrayed, publishers: Pittsburg Publicity Company, 1915