Mr. Hodge,
The information from Larry Daniel's book is from a report titled "Artillery Inspection, Army of Tennessee, September 20, 1864". Chapter 15, footnotes 1, 2, 3 and 4 all site this source. I can not locate the actual report as yet but if others don't mention this report as being in the OR's, then I believe it is not there. Info appears on pages 167 and 168. The initials AGIR appear when this inspection report is mentioned as a source. I don't know what these mean.
Ron