General view of the tank car loading station used to transport hot rosin at the Hercules Powder Company plant in Brunswick, Georgia. One of two Hercules plants specializing in naval stores, the Brunswick plant extracted rosin, turpentine, and pine oil from pine tree stumps in order to produce a range of chemicals used in the manufacture of varnishes, paints, adhesives, insecticides, textiles, and other industrial products. The employee visible adjusting the loading pipe on top of the tank car is identified as Clifford Martin.

Formed in 1912 as part of an anti-trust settlement with DuPont, the Hercules Powder Company (later Hercules Inc.) initially specialized in the manufacture of explosives and smokeless powders and subsequently diversified its business to encompass a variety of industrial products, including pine and paper chemicals, synthetics, pigments, polymers, and cellulose.