103rd Illinois Infantry

== Regimental History and Service Record ==
Organized at Peoria, Ill., and mustered In October 2, 1862. Moved to Cairo, Ill., thence to Bolivar, Tenn., October 30-November 2, 1862. Attached to 1st Brigade, 4th Division, Right Wing 13th Army Corps (Old), Department of the Tennessee, to December, 1862. 2nd Brigade, District of Jackson, 16th Army Corps, to March, 1863. 2nd Brigade, 1st Division, 16th Army Corps, to July, 1863. 2nd Brigade, 4th Division, 15th Army Corps, to September, 1864. 2nd Brigade, 1st Division, 15th Army Corps, to June, 1865.
SERVICE.--Grant's Central Mississippi Campaign November 2-December 31, 1862. Moved to LaGrange, Tenn., November 3, and duty there until November 28. Reconnaissance from LaGrange to Lamar, Miss., November 5. Wirsham Creek November 6. Garrison at Waterford, Miss., December 1-31. Moved to Jackson, Tenn., December 31, and duty there until March 10, 1863. Moved to LaGrange, Tenn., March 10, 1863, and duty there until June 5. Expedition to Holly Springs and Waterford, Miss., and Colliersville, Tenn., April 17-25. Moved to Memphis, Tenn., June 5-6; thence to Vicksburg, Miss., June 8-13. 
* May 18-July 4, 1863 - Siege of Vicksburg, Mississippi
* Advance on Jackson, Miss., July 4-10. 
* Birdsong Ferry, Big Black River, July 4-6. 
* Siege of Jackson July 10-17. 
* At Big Black River until September 28. 
* September 26-November 20, 1863 - Expedition from Vicksburg, Mississippi to Chattanooga, Tennessee
* Operations on Memphis & Charleston R. R. in Alabama October 20-29. 
* November 23-27, 1863 - The Chattanooga/Ringgold Campaign
** Tunnel Hill November 24-25.
** Mission Ridge November 25.
** Pursuit to Graysville November 26-27. 
* March to relief of Knoxville and return to Bridgeport, Ala., November 28-December 19. 
* Moved to Stevenson, Ala., December 24, thence to Scottsboro, Ala., December 26-28, and duty there until February 8, 1864. 
* Moved to Cleveland, Tenn., February 8-14.
* Demonstration on Dalton, Ga., February 22-r/. 
* Tunnel Hill, Buzzard's Roost Gap and Rocky Faced Ridge February 23-25. 
* At Cleveland until May. 
* May 1-September 8, 1864 - The Atlanta Campaign
** May 8-13, 1864 - Demonstration on Resaca, Georgia
*** May 13, 1864 - Combat at Resaca, Georgia
** Battle of Resaca May 14-15. 
** Advance on Dallas May 18-25. 
** May 25-June 5, 1864 - Operations in Bartow County, Georgia
** Operations about Marietta and against Kenesaw Mountain June 10-July 2. 
** Brush Mountain June 15. 
** Assault on Kenesaw June 27. 
** Nickajack Creek July 2-5. 
** Ruff's Mills July 4. 
** Chattahoochie River July 6-17. 
** July 22, 1864 - Battle of Atlanta, Georgia
** July 22-August 25, 1864 - Siege of Atlanta, Georgia
** Ezra Chapel, Hood's second sortie, July 28. 
** Flank movement on Jonesboro August 25-30. 
** Battle of Jonesboro August 31-September 1. 
** LoveJoy Station September 2-6. 
* Operations against Hood in North Georgia and North Alabama September 29-November 3. 
* November 15-December 21, 1864 - The Savannah Campaign
** Griswoldsville November 22. 
** Ogeechee River December 7-9.
** December 10-21, 1864 - Siege of Savannah, Georgia
* January 1-April 26, 1865 - The Carolinas Campaign
** Reconnaissance to Salkehatchie River, S.C., January 25. 
** Combahee River January 28. 
** Salkehatchie Swamps February 2-5. 
** South Edisto River February 9. 
** North Edisto River February 12-13. 
** Congaree Creek February 15. 
** Columbia February 16-17. 
** Battle of Bentonville, N. C., March 20-21. 
** Mill Creek March 22. 
** Occupation of Goldsboro March 24. 
** Advance on Raleigh April 9-13. 
** Occupation of Raleigh April 14. 
** Bennett's House April 26. 
*** Surrender of Johnston and his army. 
* March to Washington, D.C., via Richmond, Va., April 29-May 19. 
* Grand Review May 24. 
* Moved to Louisville, Ky., June 2-4. 
* Mustered out June 14 and discharged at Chicago, Ill., July 9, 1865.
== Regimental Roster ==
 
 
 Field and Staff Officers
 
 
 Regimental Band
 
 
 Company A
 
 
 Company B
 
 
 Company C
 
 
 Company D
 
 
 Company E
 
 
 Company F
 
 
 Company G
 
 
 Company H
 
 
 Company I
 
 
 Company K
 
 
 Unassigned
 
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== Regiment Statistical Information ==
* Regiment lost during service 8 Officers and 87 Enlisted men killed and mortally wounded and 1 Officer and 153 Enlisted men by disease. Total 249. 
== Legacy ==
== Notes ==
== Sources == 
* (Pages 703, 705, 714, 715, 721, 722, 779, 783, 834, 866, 1090-1091)
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