Statistics for occurrence #1 of “Yorktown” in chapter 3, page 8 of The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Index:

...during the war, I., 102; uniforms, I., 103; archives, I., 106; cavalry, I., 131; entrenchments, Centreville, Va., I., 166; river defense flotilla, I., 241; breastworks, I., 263; ramparts southwest of Yorktown , I., 265; provisionally organized at Montgomery, Ala., I., 316; Sixth Cav., I., 362; menacing Union cities, II., 64; fortifications, Port Hudson, La., II., 210; siege-gun mounted, Port Hudson, La., I...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
† Yorktown (Virginia, United States) 5,134 25 356 21 0 user votes
Yorktown (Arkansas, United States) 16 0 0 0 0 user votes
Yorktown (Pennsylvania, United States) 5 0 1 0 0 user votes
Yorktown (Illinois, United States) 0 0 0 0 0 user votes
Yorktown (Indiana, United States) 0 0 0 0 0 user votes
Yorktown (Iowa, United States) 0 0 0 0 0 user votes
Yorktown (Kentucky, United States) 0 0 0 0 0 user votes
Yorktown (Maryland, United States) 0 0 0 0 0 user votes
Yorktown (Missouri, United States) 0 0 0 0 0 user votes
Yorktown (New Jersey, United States) 0 0 0 0 0 user votes
Yorktown (New Mexico, United States) 0 0 0 0 0 user votes
Yorktown (New York, United States) 0 0 0 0 0 user votes
Yorktown (North Carolina, United States) 0 0 0 0 0 user votes
Yorktown (Ohio, United States) 0 0 0 0 0 user votes
Yorktown (South Dakota, United States) 0 0 0 0 0 user votes
Yorktown (Tennessee, United States) 0 0 0 0 0 user votes
Yorktown (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.