If it appears in the national archives, it appears somewhere else too. If it is online at the NA, post the link; otherwise you need to provide something that I can verify, as I am not going to be at the national archives anytime soon.
Walt
Not necessarily. The Archives have thousands upon thousands of documents in their record that are original government papers of their own posession and have never been printed elsewhere. This particular document is held in their records and I believe the state of Tennessee has a microfilmed copy of it, but other than the individuals who pull the documents themselves that's about it.
If it is online at the NA, post the link;
Unfortunately, as is the case with the overwhelming majority of their collection, it is not. I already looked. That's why I put in the records request.
otherwise you need to provide something that I can verify
I already did, Walt. Check North & South Magazine, November 1999. Unless you live in an isolated wilderness 100 miles from the nearest town, or unless the local library banned you as well, that magazine is every bit as accessable to you as a copy of McPherson's book is to me if I wanted it.