Statistics for occurrence #1 of “Del.” in chapter 1.57, section c.1.57.64, page 274 of Southern Historical Society Papers, Volume 35.:

...at Camp Douglas. The officers were imprisoned at various places—the Ohio penitentiary, at Columbus; Johnson's Island, Ohio; Allegheny penitentiary, Pa.; Point Lookout, Md., and Fort Delaware, Del. It was claimed that the officers were confined for a while in the Georgia penitentiary. While Major McCreary was a prisoner at Fort Delaware, 600 Confederate officers including him, were put on a...
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