Statistics for occurrence #1 of “Rock Island” in chapter 1.3 of The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Volume 7: Prisons and Hospitals.:

...rrounding barracks, sometimes previously constructed for other uses, and sometimes built for prison purposes, which type included several of the Northern prisons as Johnson's Island, Camp Morton, and Rock Island ; fifth, enclosures within which Several views of Libby Prison were taken from the land side, but this picture is unique in that it shows the building as it appeared from the river. The boa...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Rock Island (Illinois, United States) 1 0 1 0 0 user votes
Rock Island (Tennessee, United States) 1 0 1 0 0 user votes
Rock Island (Alabama, United States) 0 0 0 0 0 user votes
Rock Island (Alaska, United States) 0 0 0 0 0 user votes
Rock Island (Arizona, United States) 0 0 0 0 0 user votes
Rock Island (Canada) 0 0 0 0 0 user votes
Rock Island (Connecticut, United States) 0 0 0 0 0 user votes
Rock Island (Connecticut, United States) 0 0 0 0 0 user votes
Rock Island (Florida, United States) 0 0 0 0 0 user votes
Rock Island (Florida, United States) 0 0 0 0 0 user votes
Rock Island (Florida, United States) 0 0 0 0 0 user votes
Rock Island (Florida, United States) 0 0 0 0 0 user votes
Rock Island (Georgia, United States) 0 0 0 0 0 user votes
Rock Island (Idaho, United States) 0 0 0 0 0 user votes
Rock Island (Idaho, United States) 0 0 0 0 0 user votes
Rock Island (Illinois, United States) 0 0 0 0 0 user votes
Rock Island (Illinois, United States) 0 0 0 0 0 user votes
Rock Island (Indiana, United States) 0 0 0 0 0 user votes
Rock Island (Maine, United States) 0 0 0 0 0 user votes
Rock Island (Maine, United States) 0 0 0 0 0 user votes
Rock Island (Maryland, United States) 0 0 0 0 0 user votes
Rock Island (Massachusetts, United States) 0 0 0 0 0 user votes
Rock Island (Massachusetts, United States) 0 0 0 0 0 user votes
Rock Island (Michigan, United States) 0 0 0 0 0 user votes
Rock Island (Minnesota, United States) 0 0 0 0 0 user votes
Rock Island (Minnesota, United States) 0 0 0 0 0 user votes
Rock Island (Montana, United States) 0 0 0 0 0 user votes
Rock Island (Montana, United States) 0 0 0 0 0 user votes
Rock Island (Nevada, United States) 0 0 0 0 0 user votes
Rock Island (New Hampshire, United States) 0 0 0 0 0 user votes
Rock Island (New York, United States) 0 0 0 0 0 user votes
Rock Island (New York, United States) 0 0 0 0 0 user votes
Rock Island (New York, United States) 0 0 0 0 0 user votes
Rock Island (Oklahoma, United States) 0 0 0 0 0 user votes
Rock Island (Oregon, United States) 0 0 0 0 0 user votes
Rock Island (Oregon, United States) 0 0 0 0 0 user votes
Rock Island (Rhode Island, United States) 0 0 0 0 0 user votes
Rock Island (Rhode Island, United States) 0 0 0 0 0 user votes
Rock Island (Tennessee, United States) 0 0 0 0 0 user votes
Rock Island (Texas, United States) 0 0 0 0 0 user votes
Rock Island (Texas, United States) 0 0 0 0 0 user votes
Rock Island (Texas, United States) 0 0 0 0 0 user votes
Rock Island (Texas, United States) 0 0 0 0 0 user votes
Rock Island (Texas, United States) 0 0 0 0 0 user votes
Rock Island (Texas, United States) 0 0 0 0 0 user votes
Rock Island (Utah, United States) 0 0 0 0 0 user votes
Rock Island (Vermont, United States) 0 0 0 0 0 user votes
Rock Island (Vermont, United States) 0 0 0 0 0 user votes
Rock Island (Virginia, United States) 0 0 0 0 0 user votes
Rock Island (Washington, United States) 0 0 0 0 0 user votes
Rock Island (Washington, United States) 0 0 0 0 0 user votes
Rock Island (Washington, United States) 0 0 0 0 0 user votes
Rock Island (Washington, United States) 0 0 0 0 0 user votes
Rock Island (Wisconsin, United States) 0 0 0 0 0 user votes
Rock Island (Wisconsin, United States) 0 0 0 0 0 user votes
Rock Island (Wisconsin, 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.