History of the 123rd
Illinois Infantry

his history is from the Report of the Adjutant General of the State of Illinois (1900-1902). Not sure you want to read the whole thing? Here's a list of the men mentioned in the history.

Mentioned on the first page of the history (scroll down) of the 123rd are:

Colonel James Monroe
Jonathan Biggs of Westfield, Clark County
James A. Connolly of Charleston, IL
General Nelson
Captain Coblentz (Co. E)
1st Lieutenant S.M. Shepard (Co. A.)
Adjutant L.H. Hamlin
General Terrill
General Jackson
John Morgan
Colonel Hall, 105th Ohio commanding Brigade
General Gilbert's Corps

Mentioned on the
second page are:

Captain Harris' Battery
Morgan's Cavalry,
Captain A.C. Van Buskirk, Company H
Dr. H.C. Allen
Reynolds' division, 14th Corp
Rosecran's army
Captain Lilly (Indiana)
Crittenden's Corps

Mentioned on the
third page are:

Sergeant Major R.W. Houghton
Captain W.E. Adams
General Cook
Colonel James Monroe
Sergeant Catlin
Corporal Shope
Garrard's Division
Captain O.F Bane
Lieutenant J.R. Harding
Logan's Corps
General McPherson
Lieutenant Colonel Biggs

Mentioned on the
fourth page are:

Captain Hart, company B
General J.H. Wilson
General Kilpatrick
First Lieutenant O.J. McManus
Sgt. J.S. Mullen
Sgt. Henry E. Cross
Corporal McMurry
Private Daniel Cook
Private John Bowman
Private Marion White
Private Henry Woodruff
Adjutant L.B. Bane
Capt. W.E. Adams
Capt. Owen Wiley
Lieutenant Alex McNutt
Lieutenant J.R. Harding

This regiment was organized at Mattoon, Ill., by Colonel James Monroe (then Major of the 7th IL infantry).  Companies A,C,D,H,I and K being from Coles County; B from Cumberland, E from Clark, F and G from Clark and Crawford.  It (the 123rd) was mustered into service at Camp Terry, Mattoon, September 6, 1862 with James Monroe as Colonel, Jonathan Biggs of Westfield, Clark County as Lieutenant Colonel and James A. Connolly of Charleston, IL as Major.

On the 19th of September 1862, the Regiment was loaded into freight cars at Mattoon and transported to Louisville, KY., where it was at once put to work under General Nelson, to fortify the city against Bragg, who was then advancing on it in pursuit of Buell.
October 1, having been assigned to the 33rd Brigade, 4th Division in McCook's Corps, the regiment started on the march under Buell, southward through Kentucky after Bragg, who had turned back. Up to this time the regiment never had battalion drill, and hardly an attempt at company drill, as all the officers, except the Colonel, were "raw recruits".
October 8, just 19 days after leaving Mattoon, the regiment was engaged in the battle of Perryville, where it lost 36 killed and 180 wounded.  Among its wounded were Captain Coblentz (Co. E), 1st Lieutenant S.M. Shepard (Co. A.) & Adjutant L.H. Hamlin.  Its Brigade commander, General Terrill & its Division Commander, General Jackson, were both killed immediately behind and within 20 feet of the line of the regiment.
October 12, moved through Danville, KY to the Kentucky River, thence back though Danville and Lebanon to Mumfordsville, KY.
November, moved via Glasgow and Bledsoe's Creek to Castillian Springs.December 26, marched in pursuit of John Morgan to Glasgow & Bear Wallow.
January 2, 1863, abandoned the chase after Morgan, & under Colonel Hall, 105th Ohio commanding Brigade, marched to Cave City, Bowling Green & Nashville, TN, reaching Murfreesboro, TN in General Gilbert's Corps, January 10.

More of the history of the 123rd

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