I will ask the wife later. She is big into Civil War History and that era. She told me what it was during one of my playthrus. She can confirm or give another lead for you.
No prob. she does Re-enacting, we did the Gettydburg 150th together, she was backround fighting in one of the movies "Gods and Generals" I think and she can tell you the color of the underwear some kid in Alaska was wearing during the time.