Statistics for occurrence #1 of “Dan” in chapter 4 of The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Index:

...V., 304. II., 324. X., 217. III., 236. IV., 300. II., 348. III., 70, 320; X., 155. X., 2. U. S. hospital boat, VII., 336. Dan tzler battery, of Virginia, VI., 265. II., 332. III., 306. III., 280. I., 309; III., 332. III., 326. (see also Pritchard's Mills, Md.). I., 352. ...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Dan 227 2 9 0 0 user votes
S. S. Dan 18 0 0 0 0 user votes
Frederick Dan 4 0 0 0 0 user votes
Beaver Dan 2 0 0 0 0 user votes
Conner Dan 2 0 0 0 0 user votes
Dawson Dan 2 0 0 0 0 user votes
Diffibaugh Dan 2 0 0 0 0 user votes
Guider Dan 2 0 0 0 0 user votes
Joseph Dan 2 0 0 0 0 user votes
Kette Dan 2 0 0 0 0 user votes
Reorden Dan 2 0 0 0 0 user votes
Tomson Dan 2 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.