As promised in my reply to Andy's post, here are the AOC's staff officers and titles, from army to wing to division to brigade:

Army of the Cumberland
Major General William Starke Rosecrans, commanding
Staff
Colonel James Barnett, chief of artillery and ordnance
Lieutenant Colonel Arthur C. Ducat, assistant inspector general
Lieutenant Colonel Julius Peter Garesche, assistant adjutant general and chief of staff
(Killed in action December 31, 1862)
Lieutenant Colonel William P. Hepburn, inspector of cavalry
Lieutenant Colonel Samuel Simmons, chief commissary
Lieutenant Colonel John W. Taylor, chief quartermaster
Major Calvin Goddard, senior aide-de-camp
Major William H. Siddell, acting assistant adjutant general, chief mustering and disbursing officer
Major Ralston Skinner, judge advocate general
Captain William D. Bickham, volunteer aide-de-camp
Captain Elias Cosper, assistant provost marshal general
Captain James Curtis, assistant inspector-general
Captain J. Bates Dickinson, assistant adjutant general
Captain Jeremiah Howard Gilman, inspector of artillery
Captain Jesse Merrill, chief of Signal Corps
Captain Nathaniel Michler, chief of Topographical Engineers
Captain Elmer Otis, commanding courier line
Captain John Christia Peterson, acting adjutant and inspector general
Captain Robert Scott Thoms, volunteer aide-de-camp
Captain Charles R. Thompson, Rosecrans’ personal aide-de-camp
Captain William M. Wiles, provost marshal general
Captain John Horne Young, assistant mustering officer
Surgeon Ebenezer Swift, medical director
First Lieutenant Frank Stuart Bond, aide-de camp
First Lieutenant George Burroughs, corps of engineers
First Lieutenant Theodore Edson, U.S. ordnance officer
First Lieutenant Byron Kirby, aide-de-camp
(Wounded in action December 31, 1862)
First Lieutenant Henry Stone, assistant adjutant general
Second Lieutenant J.R. Reynolds, acting aide-de-camp
Second Lieutenant Elbridge Geary Roys, commanding escort of headquarters train
Second Lieutenant Henry Clifton Wharton, corps of engineers

Right Wing
Major General Alexander McDowell McCook, commanding
Staff
Lieutenant Colonel Elisha Bassett Langdon, inspector-general
Major Caleb Bates, volunteer aide-de-camp
Major Charles S. Cotter, chief of artillery
Major John A. Campbell, assistant adjutant general
Major Richard H. Nodine, engineer officer
Captain Orris Blake, provost marshal
Captain Joseph Fulton Boyd, assistant quartermaster
Captain Horace Newton Fisher, volunteer aide-de-camp and topographical engineer
Captain Gates Phillips Thruston, ordnance officer
Captain Beverly Dickinson Williams, aide-de-camp
Surgeon Clarke McDermont, medical director
First Lieutenant Lovell H. Thrixton, commanding headquarters escort

First Division, Right Wing
(Old 9th Division)
Brigadier General Jefferson Columbus Davis, commanding
Staff
Captain Miller R. McCulloch, aide-de-camp
(Killed in action December 31, 1862)
Captain Henry Pease, inspector general
Captain Oscar F. Pinney, chief of artillery
(Mortally wounded December 31, 1862 while commanding 5th Wisconsin Battery)
Captain Samuel B. Scherer, commanding headquarters escort
Captain Shriver, ordnance officer
Surgeon John Luscombe Teed, medical director
First Lieutenant Thomas H. Dailey, aide-de-camp
First Lieutenant Theophilus Wylie Morrison, acting assistant adjutant general
First Lieutenant Robert Plunkett, provost marshal
First Lieutenant Francis E. Reynolds, aide-de-camp
Private Frank Clark, clerk to assistant adjutant general and acting aide-de-camp

First Brigade, First Division, Right Wing
(Old 30th Brigade)
Colonel Philip Sidney Post, commanding
Staff
First Lieutenant Henry N. Baker, 74th Illinois
First Lieutenant Hamilton Warren Hall, 59th Illinois
First Lieutenant Hobert H. Hatch, 74th Illinois
First Lieutenant Samuel M. Jones, 59th Illinois
Private George Fogle, orderly

Second Brigade, First Division, Right Wing
(Old 31st Brigade)
Colonel William Passmore Carlin, commanding
Staff
Captain William C. Harris, 38th Illinois
Captain Samuel P. Voris, acting assistant adjutant general
First Lieutenant Albert Woodbury, 2nd Minnesota Battery
Second Lieutenant Walter E. Carlin, 38th Illinois
Private Alexander C. Hosmer, clerk
Private Amick, orderly
Private Hart, orderly
Private Knox, orderly
Private Pease, orderly

Third Brigade, First Division, Right Wing
(Old 32nd Brigade)
Colonel William E. Woodruff, commanding
Staff
Captain George Austin, acting assistant adjutant general
Captain Allen C. Keys, 35th Illinois
First Lieutenant Caswell P. Ford, quartermaster
First Lieutenant John F. Isom, 25th Illinois
First Lieutenant Harvey S. Park, 2nd Kentucky Cavalry
Second Lieutenant William R. McChesney, 2nd Kentucky Cavalry
Private A.T. Greeman, orderly
Private Abijah Lee, orderly

Second Division, Right Wing
(Old 2nd Division)
Brigadier General Richard W. Johnson, commanding
Staff
Captain Joseph R. Bartlett, acting assistant adjutant general and inspector general
Captain Theodore C. Bowles, assistant quartermaster
Captain Warren Parker Edgarton, chief of artillery
Captain William D. Hooker, 4th Kentucky Cavalry
Captain William E. McLeland, commissary of subsistence
Surgeon Solon Marks, medical director
Lieutenant Taft
Lieutenant Hill
Second Lieutenant Frank N. Sheets
Sergeant William C. Miles, 3rd Kentucky Cavalry, commanded headquarters escort

First Brigade, Second Division, Right Wing
(Old 6th Brigade)
Brigadier General August Willich, commanding
(Captured December 31, 1862)
Colonel William H. Gibson, commanding
Staff
Captain Carl Schmitt, assistant adjutant general
First Lieutenant Shepherd S. Green, acting assistant inspector general
Lieutenant McGrath
First Lieutenant Milton F. Miles, 49th Ohio

Second Brigade, Second Division, Right Wing
(Old 5th Brigade)
Brigadier General Edward Needles Kirk, commanding
(Mortally wounded December 31, 1862)
Colonel Joseph B. Dodge, commanding
Staff
Captain Abraham Beeler, volunteer aide
Captain Edmond P. Edsall, inspector general
Captain Isaiah C. McElfatrick, topographical engineer
Captain David C. Wagner, assistant adjutant general
Assistant Surgeon George W. Hewitt, acting brigade surgeon
Lieutenant Alexander T. Baldwin, aide-de-camp
Lieutenant Peter F. Walker, aide-de-camp
Private John Darstrin, orderly
Private Thomas Mar, orderly
(Wounded in action December 31, 1862)

Third Brigade, Second Division, Right Wing
(Old 4th Brigade)
Colonel Philemon Prindle Baldwin, commanding
Staff
Surgeon Enos S. Swain, brigade surgeon
First Lieutenant George H. Burns, acting assistant adjutant general
First Lieutenant William L. Patterson, 1st Ohio
First Lieutenant Joseph Johnson Siddall, 6th Indiana

Third Division, Right Wing
(Old 11th Division)
Brigadier General Philip Henry Sheridan, commanding
Staff
Major Henry F. Dietz, provost marshal
Captain Henry Hescock, chief of artillery
Captain George Lee, assistant adjutant general
Captain Francis Mohrhart, topographical engineer
Surgeon David J. Griffith, medical director
First Lieutenant Frank H. Allen, aide-de-camp
First Lieutenant Edgar M. DeBruin, aide-de-camp
First Lieutenant Robert M. Denning, aide-de-camp
First Lieutenant Arad J. Douglass, ordnance officer
First Lieutenant Joseph T. Forman, commanding escort
Second Lieutenant Thomas H. Soward, aide-de-camp

First Brigade, Third Division, Right Wing
(Old 37th Brigade)
Brigadier General Joshua Woodrow Sill, commanding
(Killed in action December 31, 1862)
Colonel Nicholas Greusel, commanding
Staff
Surgeon Delos W. Young, brigade surgeon
First Lieutenant Nathaniel S. Bouton, brigade quartermaster
Lieutenant J.B. Watkins, acting assistant adjutant general
Second Lieutenant John L. Mitchell, aide-de-camp
Quartermaster Sergeant Frederick Colburn, volunteer aide-de-camp

Second Brigade, Third Division, Right Wing
(Old 35th Brigade)
Colonel Frederick Schaefer, commanding
(Killed in action December 31, 1862)
Lieutenant Colonel Bernard Laiboldt, commanding
Staff
Unknown

Third Brigade, Third Division, Right Wing
Colonel George Williamson Roberts, commanding
(Killed in action December 31, 1862)
Colonel Luther Prentice Bradley, commanding
Staff
Captain Rufus Rose, 51st Illinois

Thanks Mike. That's quite an endeavor!
Andy Siganuk