Ohio and Mississippi Railway
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The Ohio and Mississippi Railway, abbreviated O&M, was a railroad operating between Cincinnati, Ohio, and East St. Louis, Illinois, from 1857 to 1893.
Share of the Ohio and Mississippi Railway Company, issued 31 march 1887
The former O&M line in Osgood, Indiana.
Ormsby M. Mitchel
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Ormsby MacKnight Mitchel was an American astronomer, polymath, and major general in the American Civil War.
Ormsby Mitchel