Organized at Port Hudson, La., September 24, 1863. Attached to Garrison, Port Hudson, La., to December, 1863. 1st Brigade, 1st Division, Corps de Afrique, Dept. of the Gulf, to April, 1864.
SERVICE.--Garrison duty at Port Hudson until April, 1864. Expedition to Grand Gulf February 15-March 6, 1864. Designation of Regiment changed to 84th United States Colored Troops April 4, 1864.