Organized at Memphis, Tenn., June, 1863. Attached to 1st Brigade, 5th Division, District of Memphis, 16th Army Corps, Dept. of the Tennessee, to April, 1864. Post and garrison duty at Memphis, and at Fort Pickering, Defenses of Memphis, June, 1863, to April, 1864. Designation changed to 3rd United States Colored Heavy Artillery April 26, 1864.