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The Refugio Valley
Rocks, Soils, Hills and Valleys
Estuary and Watershed
Human Settlement
Rails, Piers and Roads
The Hercules Powder Works
Explosives and the Second Industrial Revolution
Commerce in Explosive Products
Operation and Development of the Hercules Works
Conditions of Production
The Municipality
Factory Town
Municipal Growth
Municipal Crisis
Municipal Austerity
Times and Places
Neatline
Neatline Time
Timeline
Sources and Reading
About HHS
Buy Our Book!
“Historic US 40 Route” Sign Project
Seeking Information on Ceramic Acid Vessels
The Hercules Historical Society
Collection
Jennifer Posedel
Title
Jennifer Posedel
Collection Items
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Still Image
People
Oakland Cemeteries
Photos of graveside monuments of people significant to Hercules & Pinole
Item
Text
Chinese Workers
Chinese Population and Census
Monographs about Chinese laborers
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Text
Advertising
California Powder Works
...2 more
Advertisements of California Powder Works
Early advertisements for Hercules brand dynamite.
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