However, if you look on the official roster, you'll find that he is "Commander, Commissary Department" and , as such, should be more than even a junior officer as you correctly stated for a supervisor and accountant of supplies. [/b][/size]
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Delmonico was appointed the Brigade's Commissary Officer.
Within a regiment, the duties of commissary were usually assigned to a lieutenant. At the brigade or division level these duties might be performed by a captain.
Given Del's culinary expertise, this suggests that he was a cook who successfully rose up through the ranks - which is quite an accomplishment in its own right.
I hereby confirm Delmonico as the Brigade Commissary Officer and appoint him a Brevet Captain. With good behavior he will almost certainly be promoted to major (in 10 or 12 years). I'm afraid if I promote him to major right away it'll go to his head and effect the cooking.
US Scout
GAF, Commanding