Statistics for occurrence #1 of “Johnson's Island” in chapter 1.2 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.:

...isease regardless of other factors. It is no less true that, if the Southern sun was disastrous to the Northerner, so the Northern winter destroyed many Southern lives. The men taken to Elmira or Johnson's Island in the summer-time, wearing thin summer clothes, often without blankets or overcoats, suffered during the winter. The statement an abundance of clothing and bedding was issued to Confederate pr...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Johnson's Island (Ohio, United States) 590 20 12 0 0 user votes
Johnson's Island (Illinois, United States) 2 0 0 0 0 user votes
Johnson's Island (Florida, United States) 0 0 0 0 0 user votes
Johnson's Island (Michigan, United States) 0 0 0 0 0 user votes
Johnson's Island (North Carolina, United States) 0 0 0 0 0 user votes
Johnson's Island (Tennessee, 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.