Name/Title
Powder Works Superintendent's house (Mariotti)Description
Superintendent Quinan of the California Powder Works lived in this mansion. Before the United States government declared war on Germany, the Hercules plant produced dynamite and TNT (trinitrotoluene) for the Allied Forces in World War I. In 1915, the plant manufactured 20,000 pounds of explosives daily. After the United States entered the war in 1917, the plant manufactured more than seven million pounds of TNT per month, making Hercules the largest-producing plant in the country.Copyright
Copyright Holder
Pinole Historical Society