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You searched for: Subject Corporate Names Monongahela Railway Company. Remove constraint Subject Corporate Names: Monongahela Railway Company. Subject Corporate Names Pittsburgh and Lake Erie Railroad Company. Remove constraint Subject Corporate Names: Pittsburgh and Lake Erie Railroad Company. Subject Corporate Names Washington Run Railroad Company. Remove constraint Subject Corporate Names: Washington Run Railroad Company. All Subjects Coal mines and mining--United States. Remove constraint All Subjects: Coal mines and mining--United States. All Subjects Pittsburgh and Lake Erie Railroad Company. Remove constraint All Subjects: Pittsburgh and Lake Erie Railroad Company.

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