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Topical Subjects
- Coal Mines and Mining--Progressive Miners Of America--Ozanic Collection.9
- Floods--Illinois--Harrisburg.2
- Floods--Illinois--Muddy.2
- Air ducts.1
- Coal miners--Labor unions.1
- Coal mines and mining--Illinois--Harrisburg.1
- Coal mines and mining--Illinois--Muddy.1
- Coal mines and mining.1
- Coal trade--Illinois--Muddy.1
- Floods.1
- Power-plants--Illinois--Muddy.1