Connecticut Civil War Infantry Union Units

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 * 1st Regiment, Connecticut Infantry Mustered in April 22, 1861. Organized at Hartford. Mustered out July 31, 1861.


 * 2nd Regiment, Connecticut Infantry Mustered in May 7, 1861. Organized at New Haven. Mustered out August 7, 1861.


 * 3rd Regiment, Connecticut Infantry Mustered in May 14, 1861. Organized at New Haven. Mustered out August 12, 1861.


 * 4th Regiment, Connecticut Infantry Mustered in May 21, 1861. Organized at Hartford. Designation of regiment changed to 1st Regiment, Connecticut Heavy Artillery January 2, 1862.


 * 5th Regiment, Connecticut Infantry Mustered in July 26, 1861. Organized at Hartford. Mustered out (old members July 22, 1864) July 19, 1865.


 * 6th Regiment, Connecticut Infantry Mustered in September 12, 1861. Organized at New Haven. Mustered out August 21, 1865.


 * 7th Regiment, Connecticut Infantry Mustered in September 13, 1861. Organized at New Haven. Mustered out July 20, 1865. Discharged at New Haven August 11, 1865.


 * 8th Regiment, Connecticut Infantry Mustered in September 21, 1861. Organized at Hartford. Mustered out December, 1865.


 * 9th Regiment, Connecticut Infantry Mustered in September 26, 1861. Organized at New Haven. Mustered in August 3, 1865. Mustered out at Savannah, Georgia.


 * 10th Regiment, Connecticut Infantry Mustered in October 22, 1861. Organized at Hartford. Mustered out August 15, 1865.


 * 11th Regiment, Connecticut Infantry Mustered in from October 24 to November 14, 1861. Organized at Hartford. Mustered out December 21, 1865.


 * 12th Regiment, Connecticut Infantry Mustered in November 19 to December 3, 1861. Organized at Hartford. Mustered out August 12, 1865.


 * 13th Regiment, Connecticut Infantry Mustered in November 25, 1861, to January 7, 1862. Organized at New Haven. Mustered out April 25, 1866. Mustered out at Fort Pulaski, Georgia.


 * 14th Regiment, Connecticut Infantry Mustered in August 23, 1862. Organized at Hartford. Veterans and recruits transferred to 2nd Conn. Heavy Artillery May 30, 1865. Old members mustered out May 21, 1865. The remaining enlisted men transferred to the 2d regiment Connecticut heavy artillery May 30, 1865.


 * 15th Regiment, Connecticut Infantry - "The Lyon Regiment" Mustered in August 25, 1862. Organized at New Haven. Mustered out June 27, 1865. Discharged at New Haven July 12, 1865.


 * 16th Regiment, Connecticut Infantry - "The Plymouth Pilgrims" Mustered in August 24, 1862. Organized at Hartford. Mustered out June 24, 1865.


 * 17th Regiment, Connecticut Infantry Mustered in August 28, 1862. Organized at Bridgeport. Mustered out July 19, 1865.


 * 18th Regiment, Connecticut Infantry Mustered in August 22, 1862. Organized at Norwich. Mustered out June 27, 1865. Mustered out at Harper's Ferry, West Virginia.


 * 19th Regiment, Connecticut Infantry Mustered in July 25 - September 9, 1862. Organized at Litchfield. Regiment changed to 2nd Connecticut Heavy Artillery November 23, 1863.


 * 20th Regiment, Connecticut Infantry Mustered in September 8, 1862. Organized at New Haven. Mustered out June 13, 1865.


 * 21st Regiment, Connecticut Infantry Mustered in September 5, 1862. Organized at Norwich. Mustered out June 16, 1865.


 * 22nd Regiment, Connecticut Infantry Mustered in September 20, 1862. Organized at Hartford. Mustered out July 7, 1863.


 * 23rd Regiment, Connecticut Infantry Mustered in November 14, 1862. Organized at New Haven. Mustered out August 31, 1863.


 * 24th Regiment, Connecticut Infantry Mustered in November 18, 1862. Organized at Middletown. Mustered out September 30, 1863.


 * 25th Regiment, Connecticut Infantry Mustered in November 11, 1862. Organized at Hartford. Mustered out August 26, 1863.


 * 26th Regiment, Connecticut Infantry Mustered in November 10, 1862. Organized at Norwich. Mustered out August 17, 1863.


 * 27th Regiment, Connecticut Infantry Mustered in October, 1862. Organized at New Haven. Mustered out July 27, 1863.


 * 28th Regiment, Connecticut Infantry Mustered in November 15, 1862. Organized at New Haven. Mustered out August 28, 1863.


 * 29th Regiment, Connecticut Infantry (Colored) Mustered in March 8, 1864. Organized at Fair Haven. Mustered out October 24, 1865. At New Orleans October 27-November 11. Honorably discharged at New Haven, Conn., November 25, 1865.


 * 30th Regiment, Connecticut Infantry (Colored) Mustered in March 1864. Organized at Fair Haven. 18 May 1864 - Moved to Annapolis, Md. and consolidated with 31st Regiment United States Colored Troops.