Statistics for occurrence #1 of “Seven Pines” in chapter 11, page 200 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.:

...oubts bar-red the road into the town, but, with the flanks not well protected, the position could be turned, and the Union troops did not wait to undertake a siege. At Mechanicsville, Gaines' Mill, Seven Pines , Malvern Hill, and Harrison's
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Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Seven Pines (West Virginia, United States) 627 6 21 0 0 user votes
Seven Pines (Mississippi, United States) 85 0 3 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.