Organized April 4, 1864, from 12th Corps de Afrique Infantry. Attached to 1st Brigade, 1st Division, Corps de Afrique, Dept. of the Gulf, to February, 1865. 2nd Brigade, 1st Division, United States Colored Troops, Dept. of the Gulf, to May, 1865. Northern District of Louisiana, Dept. of the Gulf, to March, 1866.
-Red River Campaign March 10-May 22. Advance from Franklin to Alexandria March 14-26. Retreat from Alexandria to Morganza May 13-20. Mansura May 16. Near Moreauville May 17. Yellow Bayou May 18. Duty at Morganza till May, 1865. Action near Morganza November 23, 1864. Duty in Northern District of Louisiana and Dept. of the Gulf to March, 1866. Mustered out March 14, 1866.
CORPS DE AFRIQUE.-UNITED STATES COLORED VOLUNTEERS.
12th REGIMENT INFANTRY.
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.
-Garrison duty at Port Hudson, La., till April, 1864. Expedition to Grand Gulf February 15-March 6, 1864. Designation of Regiment changed to 84th United States Colored Troops April 4, 1864 (which see).