As indicated in the prior posts in this thread, William O. Barger's time in the 34th. was brief. If you are interested, there is a 34th. Regiment book available.

http://www.amazon.com/gp/product/images/1401039790/ref=dp_image_text_0?ie=UTF8&n=283155&s=books

You can contact Mr. Boone by email to obtain a copy at this site -
http://www.rootsweb.ancestry.com/~mscivilw/
(Scroll down to 34th. Mississippi Infantry Regiment)