Amy, Camp Douglas was a camp for Illinois recruits in Chicago. It was named for Stephen A. Douglas, the U.S. Senator from Illinois, who had recently died. It was located near Lake Michigan. No special thought was given to sanitation, and for that reason numerous Union recruits and Confederate prisoners died while there who needn't have done so. Confederate prisoners began to be sent there in 1862, as other camps filled up, and it was used as a prison camp until 1865. There is a good book, To Die in Chicago: Confederate Prisoners at Camp Douglas, by George Levy, Pelican Publishing, ISBN 1565543319, $25, which you can get through interlibrary loan or through Barnes and Noble.com or Amazon.com. Hope this helps, Tom Pearson