Search Constraints
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Creator Personal Names
McBride, W. Wayne.
Remove constraint Creator Personal Names: McBride, W. Wayne.
All Creators
Lieben, Jan.
Remove constraint All Creators: Lieben, Jan.
All Creators
Pendergrass, Eugene Percival, 1895-
Remove constraint All Creators: Pendergrass, Eugene Percival, 1895-
Subject Topical
Coal mines and mining--Pennsylvania.
Remove constraint Subject Topical: Coal mines and mining--Pennsylvania.
Subject Topical
Lungs--Dust diseases.
Remove constraint Subject Topical: Lungs--Dust diseases.
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