Statistics for occurrence #1 of “Chattanooga” in chapter 14 of The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Volume 3: The Decisive Battles.:

...the world's warfare — as fearful in its destruction as it is historic in its import. But this was not Sherman's chief achievement; it was an easy task compared with the great campaign between Chattanooga and Atlanta through which he had just passed. As a military accomplishment it was little more than a grand picnic, declared one of his division commanders, in speaking of the march through Georgia...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Chattanooga (Tennessee, United States) 6,586 99 602 1 0 user votes
Chattanooga (Colorado, United States) 1 0 1 0 0 user votes
Chattanooga (Ohio, United States) 0 0 0 0 0 user votes
Chattanooga (Oklahoma, 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.