20th Connecticut Infantry

== Regimental History and Service Record ==
Organized at New Haven September 8, 1862. Left State for Washington, D.C., September 11. Attached to 2nd Brigade, 1st Division, 12th Army Corps, Army of the Potomac, to May, 1863. 1st Brigade, 1st Division, 12th Army Corps, Army of the Potomac, to October, 1863, and Army of the Cumberland to April, 1864. 1st Brigade, 1st Division, 20th Army Corps, Army of the Cumberland, April, 1864. 2nd Brigade, 3rd Division, 20th Army Corps, to May, 1864. 3rd Brigade, 3rd Division, 20th Army Corps, to June, 1865.
SERVICE.--Duty in the Defenses of Washington September 29, 1862. Moved to Frederick, Md., September 29, thence to Sandy Hook October 2. March to Fredericksburg, Va., December 10. Duty at Fairfax Station, Va., December 14, 1862, to January 19, 1863. Moved to Stafford C. H. January 19-23, and duty there April 27. 
* April 27-May 6, 1863 - The Chancellorsville Campaign
** May 1-5, 1863 - Battle of Chancellorsville, Virginia
* June 11-August 1, 1863 - The Gettysburg Campaign 
** July 1-3, 1863 - Battle of Gettysburg, Pennsylvania 
Near Raccoon Ford September 24. Moved to Brandy Station, thence to Bealeton and to Stevenson, Ala., September 24-October 3. Guard duty along Nashville & Chattanooga R. R. April, 1864. Action at Tracy City, Tenn., January 20, 1864 (Co. "B"). 
* May 1-September 8, 1864 - The Atlanta Campaign
** May 8-11, 1864 - Demonstration against Rocky Faced Ridge, Georgia
** Buzzard's Roost Gap May 8-9. 
** Boyd's Trail May 10. 
** May 14-May 15, 1864 - Battle of Resaca, Georgia
** Cassville May 19. 
** May 25-June 5, 1864 - Operations in Bartow County, GeorgiaNot originally referenced on unit homepage
*** Guard Ordnance Trains May 24-June 13, and provost duty at Ackworth, Ga., July 8. 
** At Marietta July 16. 
** Peach Tree Creek July 19-20. 
** July 22-August 25, 1864 - Siege of Atlanta, Georgia
** Operations at Chattahoochee River Bridge August 26-September 2. 
** September 2-November 15 - Occupation of Atlanta, Georgia 
* November 15-December 21, 1864 - The Savannah Campaign
** December 10-21, 1864 - Siege of Savannah, Georgia
* January 1-April 26, 1865 - The Carolinas Campaign
** At Hardee's Plantation January 4-16, 1865. 
** Lawtonville, S.C., February 2. 
** Reconnaissance to Silver Run Creek, N. C., March 14. 
** Averysboro or Taylor's Hole Creek March 16. 
** Battle of Bentonville March 19-21. 
** Occupation of Goldsboro March 24, and 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 20. 
* Grand Review May 24. 
* Camp near Fort Lincoln June 13. 
* Mustered out June 13, 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 4 Officers and 76 Enlisted men killed and mortally wounded and 3 Officers and 85 Enlisted men by disease. Total 168.
== Legacy ==
== Notes ==
== Sources == 
* (Pages 703, 704, 707, 715, 719, 721, 722, 827, 834, 905, 916, 1014)
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