Seems like I remember someone mentioning this Jaones man befor. Here is some info from the ORs

FFICE COMMISSARY-GENERAL OF PRISONERS.
Detroit, July 8, 1862.
Colonel J. H. TUCKER, Commanding Camp Douglas, Chicago, Ill.,
COLONEL: Your letter of yesterday with its inclosures just received. The Secretary of War's orders give you no discretion in the matter and William Pinckney Jones, of the Third Mississippi Regiment, must be immediately and unconditionally released. No obligations are imposed on Mr. Jones by the terms of his release. As an exchanged prisoners he could claim the right to return South. Whether he has the same right under his present release I am not able to say. I return the order for your guidance.
Very respectfully, your obedient servant,
W. HOFFMAN.
Colonel Third Infantry, Commissary-General of Prisoners.

War of the Rebellion: Serial 117 Page 0154 PRISONERS OF WAR AND STATE, ETC.