Statistics for occurrence #1 of “Seven Pines” in chapter 1.1 of The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Volume 7: Prisons and Hospitals.:

... Seven Pines
The pages of this volume tell little of war's pomp and pageantry. Their subject is, and must be, grim and ...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Seven Pines (Mississippi, United States) 85 4 3 0 0 user votes
Seven Pines (West Virginia, United States) 627 6 21 0 0 user votes
Seven Pines (Pennsylvania, United States) 16 0 0 0 0 user votes
Seven Pines (Alabama, United States) 4 0 0 0 0 user votes
Seven Pines (California, United States) 0 0 0 0 0 user votes
Seven Pines (California, United States) 0 0 0 0 0 user votes
Seven Pines (Texas, 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.