Statistics for occurrence #1 of “James River” in chapter 41 of Admiral David D. Porter, The Naval History of the Civil War.:

...e people in the gun-boats equally so; and the light artillery and bushwhackers soon came to the conclusion that attacking gun-boats was a losing business. The gun-boats now so rigidly patrolled the James River that they were in close proximity to all transports passing up or down. So seldom did the enemy get a chance to fire unmolested on a transport, that they even took occasion to attack a hospital ste...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
James River (United States) 4 0 0 0 0 user votes
James River (Australia) 0 0 0 0 0 user votes
James River (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.