if you ancestor in the 14th Arkansas was killed at Iuka on Sept. 19, 1862, I am guessing there is a very good chance he is buried in the mass burial trench at the Shady Grove Cemetery nearby.
Am still trying to get a handle on exactly when the burial trench was used and if it was dug by the Federals and/or the Confederates and at what time...
Chip has posted an image of the burial trench at:
http://history-sites.com/cgi-bin/bbs53x/mscwmb/webbbs_config.pl?noframes%3Bread=16510
Kenneth Byrd