Statistics for occurrence #1 of “Chickahominy” in chapter 56 of Ulysses S. Grant, Personal Memoirs of U. S. Grant:

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Lee's position was now so near Richmond, and the intervening swamps of the Chickahominy so great an obstacle to the movement of troops in the face of an enemy, that I determined to make my next left flank move carry the Army of the Potomac south of the James River.
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Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Chickahominy (Virginia, United States) 799 8 11 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.