1 Finding Aid.
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'Engineers' in subject Geologists in subject [X]
Land records and papers. in subject [X]
Land - deeds and grants. in subject [X]
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Coal mines and mining (1)
Coal mining. (1)
Engineers (1)
Geologists[X]
Land - Plats and surveys. (1)
Land - deeds and grants.[X]
Land records and papers.[X]
Oil and Gas Industry and Fields. (1)
Railroads - Chesapeake and Ohio Railroad. (1)
Surveyors and surveying. (1)
Page: 1