Dear Borderruffian;
I found this:
Dyer's Compendium, Pt. 1 (Campaigns etc.)
Organization List (here for abbreviations)--U.S. Regular Army
st Regt. Cav.
2nd Regt. Cav.
3rd Regt. Cav.
4th Regt. Cav.
5th Regt. Cav.
6th Regt. Cav.
Batty. A. 1st Arty.
Batty. B. 1st Arty.
Batty. C. 1st Arty.
Batty. D. 1st Arty.
Batty. E. 1st Arty.
Batty. F. 1st Arty.
Batty. G. 1st Arty.
Batty. H. 1st Arty.
Batty. I. 1st Arty.
Batty. K. 1st Arty.
Batty. L. 1st Arty.
Batty. M. 1st Arty.
Batty. A. 2nd Arty.
Batty. B. 2nd Arty.
Batty. C. 2nd Arty.
Batty. D. 2nd Arty.
Batty. E. 2nd Arty.
Batty. F. 2nd Arty.
Batty. G. 2nd Arty.
Batty. H. 2nd Arty.
Batty. I. 2nd Arty.
Batty. K. 2nd Arty.
Batty. L. 2nd Arty.
Batty. M. 2nd Arty.
Batty. A. 3rd Arty.
Batty. B. 3rd Arty.
Batty. C. 3rd Arty.
Batty. D. 3rd Arty.
Batty. E. 3rd Arty.
Batty. F. 3rd Arty.
Batty. G. 3rd Arty.
Batty. H. 3rd Arty.
Batty. I. 3rd Arty.
Batty. K. 3rd Arty.
Batty. L. 3rd Arty.
Batty. M. 3rd Arty.
Batty. A. 4th Arty.
Batty. B. 4th Arty.
Batty. C. 4th Arty.
Batty. D. 4th Arty.
Batty. E. 4th Arty.
Batty. F. 4th Arty.
Batty. G. 4th Arty.
Batty. H. 4th Arty.
Batty. I. 4th Arty.
Batty. K. 4th Arty.
Batty. L. 4th Arty.
Batty. M. 4th Arty.
Batty. A. 5th Arty.
Batty. B. 5th Arty.
Batty. C. 5th Arty.
Batty. D. 5th Arty.
Batty. E. 5th Arty.
Batty. F. 5th Arty.
Batty. G. 5th Arty.
Batty. H. 5th Arty.
Batty. I. 5th Arty.
Batty. K. 5th Arty.
Batty. L. 5th Arty.
Batty. M. 5th Arty.
1st Batt'n Engineers.
1st Regt. Infy.
2nd Regt. Infy.
3rd Regt. Infy.
4th Regt. Infy.
5th Regt. Infy.
6th Regt. Infy.
7th Regt. Infy.
8th Regt. Infy.
9th Regt. Infy.
10th Regt. Infy.
11th Regt. Infy.
12th Regt. Infy.
13th Regt.. Infy.
14th Regt. Infy.
15th Regt. Infy.
16th Regt. Infy.
17th Regt. Infy.
18th Regt. Infy.
19th Regt. Infy.
Total organizations, 86.
--------------------------
Dyer's Compendium, Pt. 1 (Campaigns etc.)
Union Regimental Index--United States Regular Army
16th REGIMENT INFANTRY.—Org. at Chicago, Ill. Nov., 1861, 3 Brig., Army Ohio. Dec., 1861, 4 Brig., 2 Div., Army Ohio. Sept.. 1862, 4 Brig., 2 Div., 1 Corps, Army Ohio. Nov., 1862, 3 Brig., 2 Div., Right Wing 14 Corps, Dept. Cumb'd. Dec., 1862, 4 Brig., 1 Div., Centre 14 Corps, Cumb'd. Jany., 1863, 4 Brig., 1 Div., 14 Corps, Cumb'd. April, 1863, 3 Brig., 1 Div., 14 Corps, Cumb'd. Oct., 1863, 2 Brig., 1 Div., 14 Corps, Cumb'd. Sept., 1864, Regular Brig., Chattanooga, Tenn., Dept. Cumb'd. Nov., 1864, 1 Brig., 1st Separate Div., Dist. Etowah, Dept. Cumb'd.
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In regard to commissions; from the ACW standards; a commission was issued to an officer the lowest rank would be 2nd Lieutenant. From West Point, NY = National Military Academy; all graduates were 2nd Lieutenants. Each junior officer on his promotion up through the senior ranks; into the General ranks--recieve new commissions that reflect the date of promotion, when it went into effect and--at times his assignment.
This is especially true in the Regular/US Army/USA/Union/Federal Army.
One 'should' see: Example: Captain John Smith-USA; He would be addressed as "Captain Smith or Captain Smith-Regulars"
Commissions for officers in the "Volunteer" Army; were issued with a marked difference; with the USA-V, USV or AoV. They recieved commissions as the regular Army officer; but--there would be wording to reflect if it was a Volunteer position. Example: Captain John Smith-USV He would be addressed as "Captain Smith of Volunteers."
There is also the case of "Brevet Commission" rank. This was an honorary rank bestowed and at times given that rank temporarily until a vacancy in that rank came open; then the senior "Brevet" officer would fill the vacancy. Many came as 'battlefield' promotions. The other way of being 'brevet' commissioned was by Congressional action.
In the "Regular Army," a breveted brigadier general might be in the Regular Army a Colonel. Yet, can be a brevet brigadier general at the same time and hold another brevet commission entirely in the 'Volunteer' army.
General G. A. Custer held three commissions as an example. General Custer held a 'brevet' rank of Major General of Volunteers. He also held a 'brevet' commission as a Brigadier General -Regular US Army. But--George A. Custer's permanent rank was merely a Lt. Colonel.
Here is an exchange between Colonel William Gamble who is Brevet Brigadier General.
HEADQUARTERS SEPARATE BRIGADE,
Fairfax Court-House, Va., March 13, 1865.
Lieut. Col. J. H. TAYLOR,
Chief of Staff, Department of Washington:
COLONEL: I have the honor to report that one of the three stockades at this post will be ready in two days to mount guns. I request that the two 20-pounder Parrott guns may be sent here for that purpose with as little delay as possible.
Very respectfully, your obedient servant,
W. GAMBLE,
Colonel, Commanding Brigade.[Indorsement.]
HEADQUARTERS DEPARTMENT OF WASHINGTON,
TWENTY-SECOND ARMY CORPS,
March 14, 1865.
Respectfully returned to Brevet Brigadier-General Gamble, commanding Separate Brigade. It is not deemed advisable to send guns of this caliber to Fairfax.
By command of Brigadier-General Augur:
J. H. TAYLOR,
Cider of Staff and Assistant Adjutant-General.
-----
FAIRFAX COURT-HOUSE, VA., March 13, 1865--11.30 a.m.
(Received 12.05 p.m.)
Lieut. Col. J. H. TAYLOR,
Chief of Staff, Department of Washington:
COLONEL: Your telegram received. I have now 1,200 cavalry out--800 with Captain Russell to Sperryville, and about 400 with Colonel Sweitzer to Waterford. The balance of the cavalry is barely sufficient to patrol between the posts of the line, to keep up communications, and protect public property. When the cavalry now out returns the guerrillas in front and rear of the line will have a lively time of it. Nothing yet heard from Captain Russell, but I expect him here to-night. Any information received will at once be telegraphed to you.
W. GAMBLE,
Colonel,
Commanding Brigade
------------
HEADQUARTERS SEPARATE BRIGADE,
Fairfax Court-House, Va., March 17, 1865--5.30 p.m.
Colonel WELLS,
Provost. Marshal- General, Alexandria:
COLONEL: Your telegram received. The line notified. We are ready for a free fight.
W. GAMBLE,
Colonel,
Commanding Brigade.
-----
HEADQUARTERS DEPARTMENT OF WASHINGTON,
TWENTY-SECOND ARMY CORPS,
Washington, D.C., March 17, 1865--10.05 a.m.
General GAMBLE,
Commanding, Fairfax Court-House:
How soon can you spare about 800 cavalry, in good condition, to make an expedition to the Northern Neck?
C. C. AUGUR,
Major-General.
-----
FAIRFAX COURT-HOUSE, VA.,
March 17, 1865--10.30 p.m. (Received 11.30 p.m.)
Maj. Gen. C. C. AUGUR:
GENERAL: I can have 800 cavalry ready to start Monday morning for the Northern Neck. The Eighth Illinois Cavalry are now drawing horses and arms. Colonel Clendenin will call on you to-morrow forenoon.
W. GAMBLE,
Colonel, Commanding Brigade.
===============================================
Can you imagine the confusion? LOL - Maj. General addressing his Colonel in his "Brevet" rank of Brig. General; and Colonel Gamble maintaining his full rank in response.
Anyway - many 'brevet' generals remained addressed as 'generals' even though regular full rank they were another rank entirely.
The 'commission' illustrated, as best as I can read it (have a lap top screen); is for the US Regular Army. Nominated by General (can't read it); Signed and filed by the AAG L. Thomas.
The 'officer' keeps their old commissions for their keepsake; the old commission copy, is kept in file of "Military Records/Archives"; to which tracks the service; pension, etc. When they are promoted; they are issued new commissions. At times; the old commissions will be punched with 'void' in the document; not enough to spoil it but just void it.
Just some thoughts.
Respectfully submitted for consideration,
M. E. Wolf
NOTICE POST SCRIPT: This certificate of military officer's commission's top and bottom Vignette matches to US Regular Army; in a later document under President Johnson (after Lincoln's death and signed by Lincoln/now Johnson's Secretary of War
The commission seemingly was recommended by a General (to which I can't read who); and not a commission issued by the National Military Academy (West Point). So the promotion was from merit not by academics.
VIGNETTE: Means the 'engraving and printed illustrations and 'German style' headings and footers to the 'certificate.' Top and bottom Vignettes respectively.