Organization currently incomplete, and being developed.

August 12, 1863: Organized at St. Louis, Mo.
January, 1864: Attached to District of Eastern Arkansas, Dept. Arkansas.
March, 1864: Little Rock, Ark., 7th Army Corps, Dept. Ark.

March, 1864: Ordered to Helena, Ark., and Post duty there and at Little Rock.
February 4-8, 1864: Expedition from Helena up White River,
February 13-14: St. Francis River.

March 11, 1864: Designation of Regiment changed to 56th U.S. Colored Troops.