Is this the same unit?

5th USCT Heavy Artillery

Organized from 1st Mississippi Volunteer Heavy Artillery (African Descent). Designated 4th USCT Heavy Artillery March 11, 1864, and 5th Heavy Artillery April 26, 1864. Attached to 1st Division, United States Colored Troops, District of Vicksburg, Miss., to February, 1865. Unattached, Post of Vicksburg, Dept. of Mississippi, and Dept. of the Gulf to May, 1864.

SERVICE.--Garrison duty at Vicksburg, Miss., until May, 1866. Expedition from Vicksburg to Rodney and Fayette September 29-October 3, 1864. Expedition from Vicksburg to Yazoo City November 23-December 4, 1864. Mustered out May 20, 1866.

Lost during service 4 Officers and 124 Enlisted men killed and mortally wounded and 697 Enlisted men by disease. Total 829.