You can obtain some information from the sources below.

I'd suspect he may have been a Pharmacist or had some pre-medical college work. What was his name and unit organization?

Camp Morton – Civil War Camp and Union Prison, 1861-1865, Indianapolis, Indiana
http://freepages.history.rootsweb.ancestry.com/~indiana42nd/campmorton.htm

See also: http://www.google.com/search?hl=en&client=safari&rls=en&&sa=X&ei=5Bi5TJGcMYGesQPT4ZCFCg&ved=0CCUQBSgA&q=Camp+Morton+Indiana+Prison+Camp&spell=1