Yeah, that Shelby Foote was obviously a liar. Terrible shame, that. And he's dead, so he can't defend himself, which is probably how you prefer it.
This seems to be the closest thing to a different authoritative source that I could find in a quick search.
http://muse.jhu.edu/chapter/1220328
The quote appears to be used in several other books as well. Here is another one.
I doubt you're all that devastated. Lack of source for it hadn't bothered you so far.
Yeah, that Shelby Foote was obviously a liar. Terrible shame, that. And he's dead, so he can't defend himself, which is probably how you prefer it.
But still no source. What Lost Cause website did you get it off of? Maybe they sourced it?
This seems to be the closest thing to a different authoritative source that I could find in a quick search.
Where is that any more authoritative that Foote? Neither one sources it.