Mr. Lawson,
You will need to check your ancestors' Compiled Military Service Record (CMSR) to see if you had passed through Louisville. As I stated in my original post, Louisville was a way station of sorts while Federal officials decided the disposition of a prisoner. I am looking for correspondence, guidance, and policy on determining how this disposition was to take place.
You can obtain the CMSR through this website at the top center of the page.
Respectfully,
Gerald D. Hodge, Jr.
War Between the States Historian
Historian: 39TH Georgia Volunteer Infantry Regiment
http://39thgavolinfrgt.homestead.com/39thHomepage.html