Statistics for occurrence #1 of “Fort Henry” in chapter 4.10 of The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Volume 1: The Opening Battles.:

...cClernand, an Illinois lawyer and member of Congress, and Lew Wallace, the future author of Ben Hur. Here, riding at anchor, lies the flagship of Foote, which opened the attack on Fort Henry in the first movement to break the backbone of the Confederacy, and won a victory before the arrival of the army. This gunboat, the Cincinnati, was one of the seven flat-bottom ironclads built by C...
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Entity Corpus Doc Corpus Doc  
Fort Henry (Tennessee, United States) 2,037 61 79 1 0 user votes
Fort Henry (Missouri, United States) 4 0 0 0 0 user votes

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