Statistics for occurrence #1 of “Camp Douglas” in chapter 1.57 of Southern Historical Society Papers, Volume 35.:

...a. After their capture the prisoners were sent to Cincinnati, where they constituted quite a rare show for the populace; and from thence they were sent to Camp Chase, Ohio, Camp Morton, Ind., and Camp Douglas , Ill.; though eventually most of them were assembled at Camp Douglas. The officers were imprisoned at various places—the Ohio penitentiary, at Columbus; Johnson's Island, Ohio; Allegheny peni...
Max. Freq. Min. Freq.
Entity Corpus Doc Corpus Doc  
Camp Douglas (Wisconsin, United States) 14 4 0 0 0 user votes

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