midgedear--I think you're conflating several different pieces of information. Fort Dearborn was long gone by the time of the Civil War. During the Civil War, there was a military training center on the near south side called Camp Douglas (on property originally owned by Stephen A. Douglas), which also housed Confederate prisoners of war. Those who died as POW's were buried in Oak Woods Cemetary (67th & Cottage Grove). There's a memorial in Oak Woods called the Confederate Mound Monument, which is probably what you are referring to.
Re: Fort Dearborn Is the bicentennial of the Ft. Dearborn massacre going to be ignored next summer? Where are the US military who were killed buried? Other states commemorate battlefields, why not Illinois? I know the word massacre is not PC but history d
Can we honor the dead without offending an Indian tribe that doesn't even live in Illinois? Lets also figure out a way to exhibit the powerful statue in a context that will explain that the British encouraged the local tribes to attack the American citizens at Chicago. The ex Brit Indian Department officials that comprised much of the officers at the Fort weren't at work when the massacre went down. Also, Ft. Dearborn was managed by a drunken general in Detroit who was afraid of Indians...because of General Hul's incompetence Ft. Dearborn's troops became expendable assets. The US needed the location to manage treaty negotiaions, Chicago was it.
This book may also be helpful -- To Die in Chicago: Confederate Prisoners at Camp Douglas 1862-65 by George Levy - (published in 1994, 2nd edition 1999). The book is available at several Chicago Public Libraries.