Howdy Albert !
If you are on the lookout for information about Civil War cavalry reenacting you may pick up some info on one of my sites - 3rd Texas Cavalry: http://www.3rdtexascav.wbts.info/
To get hold of pictures about a specific man in a unit are very difficult. As I understand - the man in question are ancestor of yours ? If so, you`ll probably have to ask your kin if someone have a picture of him.
Hope this helps !
Roy H Larsen
http://www.wbts.info