From the O.R. Vol. 24, Part 3, Page 955.
BENTON, June 8, 1863. Brig. Gen. JOHN ADAMS: GENERAL: The outpost duty of this army will be performed by Brigadier-General Jacksons division of cavalry. Please direct Colonel [Wirt] Adams regiment to join that division. As soon as Brigadier-General Jacksons troops are in position on this side of the Big Black, please assemble your mounted infantry at any convenient point (near Scotts Ferry, for instance), to turn over their horses to Brigadier-General Jacksons troops, after which they will join their brigades. Lieutenant-Colonel Thompson, acting inspector-general of cavalry of this department, will superintend this transfer; after it is made, please report to Major-General Loring for command of a brigade of his division.
J. E. JOHNSTON.
Now, the Department of Mississippi and Eastern Louisiana, reported on June 20, 1863 that its Commissary Depots (not dry goods or armory goods) were stocked and located at...
Canton
Jackson
Grenada
Okolona
Meridian
Columbus
[I'm trying to find what Military District and Department Jackson's Cavalry Division came under at this date. Jackson's Cavalry Div. was headquartered at Vernon, Miss. on June 18, 1863.]
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David Upton