The information doesn't indicate what state the Howitzer Section that he was attached to was from but I belive that there is a photo of an Arkansas Artillery Battery, (Union) at the following links

http://www.civilwarbuff.org/Places/Ouachita/bluff_city.html

or

http://www.google.com/imgres?hl=en&sa=X&tbo=d&biw=1280&bih=834&tbm=isch&tbnid=GXMg9eAvEhPKuM:&imgrefurl=http://cyn1020.com/tag/1st-arkansas-light-artillery/&docid=qpIEOYkdq3uNzM&imgurl=http://cyn1020.files.wordpress.com/2012/06/fd-1st-ar.jpg&w=704&h=550&ei=NRedUM7BCojBygGd3YDwDA&zoom=1&iact=hc&vpx=234&vpy=400&dur=172&hovh=198&hovw=254&tx=149&ty=62&sig=108487889198815878454&page=2&tbnh=149&tbnw=202&start=27&ndsp=32&ved=1t:429,r:1,s:27,i:171