Statistics for occurrence #1 of “Louisiana” in chapter 15 of The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Volume 8: Soldier Life and Secret Service.:

...nadvertently elected a number of Federal spies to their ranks. Prominent members were arrested. The garrison at Camp The Confederates, kept out of their former stronghold at Baton Rouge, Louisiana , by the Union army of occupation, still obtained knowledge of the state of affairs there through Lytle, the photographer, who sent pictorial evidence of the Federal occupation in secrecy to the South...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Louisiana (Louisiana, United States) 11,901 18 1 0 0 user votes
Louisiana (Denmark) 6 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.