Try this address...
http://searches1.rootsweb.com/usgenweb/archives/tn/williamson/cemeteries/mcgavock.txt
There are some errors in the book that we have found in researching the Mississippi troops buried there. For example...
Dunn, J. A. should be Dunn, Mathew Andrew
Shaw, Lt. W. C. should be Shaw, Henry Clay
I suggest contacting Tim Burgess at Carnton Plantation for the latest updates.