Statistics for occurrence #1 of “Baton Rouge” in part 2.11, chapter 1.8 of The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Volume 2: Two Years of Grim War.:

... in much disorder. General Williams was killed. Baton Rouge was evacuated shortly after. The town was not burned on account of its many public institutions. The Federal Camp Banks, at Baton Rouge , near the Penitentiary, taken in late July, 1862. This is another view of what was soon to become a battle-field. We are looking down at the Camp of the Seventh Vermont and the Twenty-first India...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Baton Rouge (Louisiana, United States) 1,422 120 342 2 0 user votes
Baton Rouge (South Carolina, United States) 0 0 0 0 0 user votes

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