Heck, I can't resist...
In addition to the aforementioned Indian citation, visit
http://www.multied.com/NAVY/cwnavalhistory/April1864.html
and see Sherman quoted as saying
Sherman added: "I want the [Tennessee] River above Mussel Shoals patrolled as soon as possible, as it will set free one garrison."
Do a Google search on the term
"mussel shoals" alabama "civil war"
and you will find numerous references to the "Mussel Shoals" usage, not in overwhelming number, but they do exist.
For anyone to argue that there is
no basis whatsoever for the Mussel Shoals usage, they would be wrong. There
are contemporaneous accounts from Civil War times justifying the Mussel Shoals usage, at least one of those accounts (Gray's official maps) being impressively authoritative.
Again, the confusion might stem from the supposition (unproven, yes) that "Mussel Shoals" refers to the river segment, while "Muscle Shoals" refers to the community near that place--
at the time of the Civil War. (Maybe during the War, both names were used to refer to the river segment? Could be.)
If,
since after the Civil War, "Muscle Shoals" has predominated, we should not be surprised if more recent and modern-day "Muscle Shoals" references on Google outnumber (even by a wide margin) "Mussel Shoals" references. Muscle Shoals City School District, Muscle Shoals Public Library, Best Western Fairwinds Inn Muscle Shoals, etc., etc.. (Mussel Shoals, CA? Not relevant to the current discussion, and a straw man, that.)
Gray has wrestled with these sorts of issues since day one. I respect his methods, honor his considered judgment, and accept his decision on this particular matter.
Let's not push Gray too hard, shall we? As AACW Coordinator, he is an unpaid volunteer. We don't want to alienate him to the point of abandoning his post.