You memtioned the book CONFEDERATES WHO DIED IN NORTHERN PRISONS AND WERE BURIED IN NATIONAL CEMETERIES. Would it be possible for you to see if Lafayette Lewis is listed? I believe he was taken to Gratiot Prison in St. Louis, then transferred to Alton, IL, where he died in 1862. I don't know if there might be other information on him in the book.
Thanks you for your time.