found: New war-tested toxicants for insecticides, 1946:p. 3 of cover (Hercules Powder Company)
found: Wikipedia, Dec. 31, 2019:(Hercules, Inc., was a chemical and munitions manufacturing company based in Wilmington, Delaware, incorporated in 1912 as the Hercules Powder Company; In 1966, the Hercules Powder Company changed its name to Hercules, Inc.)
found: SNAC (Social Networks and Archival Context) website, viewed 1 March 2023(E.I. du Pont de Nemours Powder Company; incorporated on 19 May 1903 as an operating company to consolidate approximately 100 explosives manufacturers (representing 95 percent of the powder business in the United States) controlled by E.I. du Pont de Nemours & Co.; in 1907, the United States government brought a suit to dissolve the company as an illegal combination under the antitrust law; in 1911 the Supreme Court ruled in favor of the government, which accepted a plan for breaking up the so-called "powder trust" by forming two new companies, the Hercules Powder Co. and the Atlas Powder Company; the E.I. du Pont de Nemours Powder Company continued in operation with the remainder of its assets until 1915 when all its assets were transferred to the newly [re-]incorporated E.I. du Pont de Nemours & Co.; the Powder Company became inactive even though it was not officially dissolved until 1926)
