That would be Simon Bolivar Buckner (1823-1914).
This is from: OFFICIAL RECORDS: Series 1, vol 23, Part 2
------------------------------------
HEADQUARTERS DEPARTMENT OF WESTERN VIRGINIA,
Dublin, June 15, 1863.
Major General S. B. BUCKNER,
Commanding, &c., Knoxville, Tenn.:
GENERAL: On my return from Saltville, day before yesterday, I received the drawing of the defensive works you suggest for defending the Salt-Works from the valley. Your plan seems to me to be a good one, though I am inclined to think from the peculiar formation of the valley that the works would better command the valley if one or both flanks were pierced for field guns. One gun would, I think, be enough for the truncated salient, and one for each face. Those details, however, could be best arranged by the engineer charged with the construction of the works.
I wrote to the Secretary of War yesterday, expressing my conviction that a force of 800 or 1,000 men, including at least one company of cavalry, should be designated and assigned to the permanent occupation and defense of the Salt-Works. It should be commanded by an intelligent and determined officer, who understands the use of the three arms of service, and he should have at least eight or ten pieces of artillery in position.
Such an arrangement would give you and me, or whoever may here-after command the Departments of East Tennessee and Western Virginia, greater freedom of action than we now have. A force such as I have indicated ought to hold the Salt-Works against three times their number of raiders.
If you can concur with me in opinion on that point, I would suggest that you write to the Secretary of War on the subject. Whatever is done should be done quickly. I wish you would send as soon as practicable to Saltville four of the best field guns you can spare for Captain Lowry's battery. You mentioned to me in Richmond that you could send him some.
Very respectfully and truly, &c.,
SAM. JONES,
Major-General.
--------------------------------
I would still try:
Museum of the Middle Appalachians in Saltville
http://www.museum-mid-app.org/
The Thomas J. Boyd Museum in Wytheville
http://visit.wytheville.com/boyd.htm