ILLINOIS in the CIVIL WAR Total number Illinois men in the service:

about 256,297

Illinois Infantry, Cavalry, and Artillery Units

Illinois responded to President Lincoln's first call for troops with the 7th-12th Infantry (as well as Artillery and Cavalry). Regiments were numbered in order of formation, beginning with 7. In respect for 6 Regiments that served from Illinois in the Mexican War, 1 through 6 were not used.

Regiments 7-12 were enrolled twice, once for 3 months, then for 3 years. Most of the rest were enrolled for three years, except for 67-71 (for 3 months in mid-1862, primarily for guard duty in Illinois), 132-143 and 145 (in 1863-1864 for 100 day guard duty at forts within Union occupied Confederate territory) and 144 and 146-156 (1 year duty).

By August of 1861, Illinois had enrolled men in the 7th through 55th Infantry Regiments. Some men had difficulting getting into Illinois Regiments and joined Regiments from other states. By the end of August 1862, Regiment Numbers through 116 had been or were forming. Just one month later, the number was up to the 129th.

By late November 1862, after the harvest season, Illinois had 125 Infantry Regiments, 16 Cavalry, and 30 Artillery batteries. The total was 20,000 men in excess of the Union's requested quota for the State of Illinois

The Fall of 1863 saw the enlistment of the first Illinois colored Infantry Regiment: the 29th US Colored Infantry. The Regiment left Quincy, IL in April 1864. In all, Colored troops from Illinois joined 22 distinct Military Units.

The state of Illinois resorted to the draft [or conscription] in late 1864. Of the 259,000 men who served for Illinois, only 3538 men were drafted. An additional 55 men choose to pay the $300, a legal means to avoid the draft.

Only New York, Pennsylvania and Ohio had more total men in the service.

INFANTRY, including Mounted Infantry

Illinois Regiments in the Civil War were numbered in order of formation, beginning with the 7th Regiment. None were officially called Mounted Infantry, though several were mounted for part of their service.

7	33	59	85	111	137
8	34	60	86	112	138
9	35	61	87	113	139
10	36	62	88	114	140
11	37	63	89	115	141
12	38	64	90	116	142
13	39	65	91	117	143
14	40	66	92	118	144
15	41	67	93	119	145
16	42	68	94	120	146
17	43	69	95	121	147
18	44	70	96	122	148
19	45	71	97	123	149
20	46	72	98	124	150
21	47	73	99	125	151
22	48	74	100	126	152
23	49	75	101	127	153
24	50	76	102	128	154
25	51	77	103	129	155
26	52	78	104	130	156	
27	53	79	105	131	
28	54	80	106	132	
29	55	81	107	133	
30	56	82	108	134	
31	57	83	109	135	
32	58	84	110	136	
COLORED INFANTRY CAVALRY
1       4       7       10       13       16
2       5       8       11       14       17	
3       6       9       12       15
      
Independent Cavalry Companies and Battalions
ARTILLERY Illinois and Regiments in Other States
Men from Illinois enlisted in regiments recruited in other states, including at least one Confederate company. Some of these were composed almost entirely of Illinois men and were eventually transfered to Illinois and renamed as new Illinois regiments.

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