Statistics for occurrence #1 of “Chattanooga” in chapter 12 of The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Volume 5: Forts and Artillery.:

...neral of the regular army. In the West, Forts Henry and Donelson and Vicksburg are names that are held in memory as demonstrating the high achievements of the Engineer Corps. Its labors at Chattanooga , under Colonel Merrill, rendered that important position impregnable. The work at Knoxville likewise withstood terrific onslaught. At Nashville the skill of the engineers enabled General Thomas t...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Chattanooga (Tennessee, United States) 6,586 31 602 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.