National Mining Disasters Important to Hanna Basin Miners

Exhibit by Bob Leathers

1927

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Dust Explosions (UPCEEM, Oct. 1927)

1928

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(UPCCEM, Feb. 1928)

1928

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(UPCEEM, Feb. 1928)

1928

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Mine Explosions May's Black Record. (UPCCEM, July 1928)

1929

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Coal Mine Fatality Rate Shows Increase in 1928 (UPCCEM, Apr. 1919)