21st Indiana Infantry Regiment

The 21st Indiana Infantry Regiment lost 7 officers and 60 enlisted men killed and mortally wounded and 3 officers and 320 enlisted men to disease during the Civil War.

1861
July 24	Organized at Indianapolis, Ind.
July 31	Left State for Baltimore, Md. and duty in the Defenses of that city
November 14-22	Expedition to Eastern Shore of Maryland
1862
February 19	Moved to Newport News, Va. and attached to Dix's Division, Baltimore, Md.
March 4-13	Sailed on Steamer "Constitution" for Ship Island, Miss. attached to Butler's New Orleans Expedition
March	Duty at Ship Island attached to 2nd Brigade, Dept. of the Gulf
April 14-28	Operations against Forts St. Phillip and Jackson
May 1	Occupation of New Orleans - first Regiment to land
May	Camp at Algiers
May 9-10	Expedition to New Orleans and Jackson R.. R.
May 30	Moved to Baton Rouge
August 5	Battle of Baton Rouge, La.
August 20	Evacuation of Baton Rouge
September	Camp at Carrollton
September 4-5	Action at Bayou Des Allemands
September 7-8	Expedition from Carrollton to St. Charles Court House
September 8	Skirmish near St. Charles Court House
October 21-25	Expedition from Carrollton to Donaldsonville and skirmish. Attached to Independent Command, Dept. of the Gulf
November	Duty at Berwick Bay
1863
January	Attached to1st Division, 19th Army Corps, Dept. of the Gulf
February	Designation changed to 1st Regiment Heavy Artillery, which served in the Western Theater