Statistics for occurrence #1 of “Ohio” in chapter 9.29 of Robert Underwood Johnson, Clarence Clough Buell, Battles and Leaders of the Civil War: The Opening Battles. Volume 1.:

...ere, and was taken, on that or the following day, on a trial trip a few miles down the river. The Essex, in command of Captain William D. Porter, was lying four or five miles below the mouth of the Ohio on the Kentucky shore. As the Benton passed up, on her return from this little expedition, Captain Porter offered his congratulations to Foote on the apparent excellence of the boat. Yes, replie...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Ohio (United States) 1,611 18 1 0 0 user votes
Ohio (Ohio, United States) 4,328 48 10 0 0 user votes
Ohio (Colorado, United States) 12 0 0 0 0 user votes
Ohio (Illinois, United States) 0 0 0 0 0 user votes
Ohio (Missouri, United States) 0 0 0 0 0 user votes
Ohio (New York, United States) 0 0 0 0 0 user votes
Ohio (Texas, United States) 0 0 0 0 0 user votes

† This entity has been selected by the automated classifier as the most likely match in this context. It may or may not be the correct match.