Statistics for occurrence #1 of “Ohio River” in chapter 150, page 208 of Rebellion Record: a Diary of American Events: Documents and Narratives, Volume 1.:

...f the country as she was able; she has possessed herself of the Navy-Yard at Norfolk, which guards the entrance to Chesapeake Bay; of Harper's Ferry, which commands one of the great highways from the Ohio River to the Atlantic Ocean; and, above all, of the mouth of the Mississippi, the outlet of the most extensive system of internal communication on the face of the globe. There will, in my judgment, never...
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