Statistics for occurrence #1 of “Brown county, O.” in entry ammen-daniel of Harper's Encyclopedia of United States History:

...
Naval officer; born in Brown county, O. , May 15, 1820; entered the navy as a midshipman in 1836. In 1861-62 he commanded the gunboat Seneca in the South Atlantic blockading fleet. His bravery was conspicuous in the battle of Port Royal...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  

† 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.