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Hercules Historical Society
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
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“Historic US 40 Route” Sign Project
Seeking Information on Ceramic Acid Vessels
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European People
European Settlement
First Contact & Spain
Mexico
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Gold Rush
Settlement of Pinole
Civil War Period
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First Contact and Spain
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