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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
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About HHS
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“Historic US 40 Route” Sign Project
Seeking Information on Ceramic Acid Vessels
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Item Type: Event
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Title
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Date Added
Event
Explosives Industry
Judson
...1 more
Judson Starts Vigorite Works
Event
Giant Powder
Invention
Nitroglycerine Used on Sierra Tunnels, Transcontinental Railroad
Event
Workers
Quarter Century Club
Gathering of retired workers
Showing 13 to 15 of 15 results
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