Statistics for occurrence #1 of “Columbus, Ohio” in chapter 1.2 of The Photographic History of The Civil War: in ten volumes, Thousands of Scenes Photographed 1861-65, with Text by many Special Authorities, Volume 7: Prisons and Hospitals.:

...nd, and Rock Island, in the Mississippi River. Among the second were Camp Douglas, at Chicago, Illinois; Camp Butler, at Springfield, Illinois; Camp Morton, at Indianapolis, Indiana; Camp Chase, at Columbus, Ohio ; and the Barracks, at Elmira, New York. The Gratiot Street Prison in St. Louis had been an old medical college, and Myrtle Street Prison had been used as a negro market. Fort Delaware, on an is...
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