I assume you know that James and Norris are buried in Smith County. Their names can be found on this list:

http://mscgr.homestead.com/MSCGRbry.html

Since we do not find Terrell's name on this list, we might assume that he died in another state and was buried there. We would need more information on Terrell to possibly find out where he died. Have you ordered his records? You can do so by clicking the red-bordered box above.