References:
Dyer's Compendium of the War of the Rebellion, 1908 Edition

1st REGIMENT ENGINEERS.

Organized at Camp Parapet, La., April 28, 1863. Attached to 1st Division, 19th Army Corps, Dept. of the Gulf, to August, 1863. Engineer Brigade, Corps de Afrique, to October, 1863. Engineer Brigade, 13th Army Corps, Dept. of the Gulf, to April, 1864.

SERVICE.--Siege of Port Hudson, La., May 24-July 8, 1863. Assaults on Port Hudson May 27 and June 14. Surrender of Port Hudson July 9. Sabine Pass Expedition September 4-11. Western Louisiana ("Teche") Campaign October 3-27. Rio Grande Expedition and operations on Coast of Texas October 27-December 2. Arkansas Pass November 17. Expedition against and capture of Fort Esperanza, Mattagorda Island, November 22-30. Duty at Brazos Island, Point Isabel and Brownsville, Texas, till April, 1864. Designation of Regiment changed to 95th United States Colored Troops April 4, 1864 (which see).

2nd REGIMENT ENGINEERS.

Organized at New Orleans, La., August 15, 1863. Attached to Engineer Brigade, Dept. of the Gulf, to October, 1863. Unattached, 13th Army Corps, Dept. of the Gulf, to March, 1864. Provisional Brigade, 2nd Division, 13th Army Corps, Texas, Dept. of the Gulf, to April, 1864.

SERVICE.--Duty at New Orleans, La., till December, 1863. Ordered to Mattagorda Bay, Texas, December 5. Engaged in engineering duty and erecting field works at De Crow's Point, Point Isabel, Fort Esperanza, Mattagorda Island, Indianola and Pass Cavallo, Texas, till April, 1864. Designation of Regiment changed to 96th United States Colored Troops April 4, 1864 (which see).

3rd REGIMENT ENGINEERS.

Organized at New Orleans, La., August 26, 1863. Attached to Engineer Brigade, Dept. of the Gulf, to October, 1863. Unattached, 13th Army Corps, Texas, Dept. of the Gulf, to March, 1864. Provisional Brigade, 13th Army Corps, Texas, Dept. of the Gulf, to April, 1864.

SERVICE.--Duty at New Orleans and Brashear City, La., till October, 1863. Ordered to Texas October, 1863, and duty there till March, 1864. Ordered to Berwick Bay, La., thence to Franklin, La. Red River Campaign March to May. In charge of Pontoon Train. Built bridge at Vermillionville Bayou March 18, and at Cane River March 30. Designation of Regiment changed to 97th United States Colored Troops April 4, 1864 (which see).

4th REGIMENT ENGINEERS.

Organized at New Orleans, La., September 3, 1863. Attached to Engineer Brigade, Dept. of the Gulf, to April, 1864. Stationed at New Orleans, Brashear City and Berwick City. Designation of Regiment changed to 98th United States Colored Troops April 4, 1864 (which see).

5th REGIMENT ENGINEERS.

Organized February 10, 1864, from 15th Corps de Afrique Infantry. Attached to Engineer Brigade, Dept. of the Gulf, to April, 1864.

SERVICE.--Stationed at Berwick City and Brashear City, La., till March, 1864. Red River Campaign March 10-May 22. Advance from Franklin to Alexandria March 14-26, with Pontoon Train. Built bridge at Vermillionville Bayou March 18, and at Cane River March 30. Designation of Regiment changed to 99th United States Colored Troops April 4, 1864 (which see).

1st REGIMENT INFANTRY.

Organized June 6, 1863, from 1st Louisiana Native Guard Infantry. Attached to Defences of New Orleans, La., to July, 1863. Port Hudson, La., to December, 1863. 1st Brigade, 1st Division, Corps de Afrique, Dept. of the Gulf, to April, 1864.

SERVICE.--Assault on Port Hudson June 14, 1863. Surrender of Port Hudson July 9. Duty at Port Hudson, La., till April, 1864. Skirmish at Jackson August 3, 1863, and at Tunica Bayou November 8. Designation of Regiment changed to 73rd United States Colored Troops April 4, 1864 (which see).

2nd REGIMENT INFANTRY.

Organized June 6, 1863, from 2nd Louisiana Native Guard Infantry. Attached to the Defences of New Orleans, Dept. of the Gulf, to September, 1863. 1st Brigade, 1st Division, Corps de Afrique, Dept. of the Gulf, to October, 1863. Defences of New Orleans to April, 1864. On garrison duty at Ship Island, Miss., June, 1863, to April, 1864. Designation of Regiment changed to 74th United States Colored Troops April 4, 1864 (which see).

3rd REGIMENT INFANTRY.

Organized June 6, 1863, from 3rd Louisiana Native Guard Infantry. Attached to 1st Division, 19th Army Corps, Dept. of the Gulf, to July, 1863. Port Hudson, La., to September, 1863. 1st Brigade, 1st Division, Corps de Afrique, Dept. of the Gulf, to April, 1864.

SERVICE.--Assault on Port Hudson, La., June 14, 1863. Surrender of Port Hudson July 9. Duty at Port Hudson till April, 1864. Skirmish at Jackson August 3, 1863. Designation of Regiment changed to 75th United States Colored Troops April 4, 1864 (which see).

4th REGIMENT INFANTRY.

Organized June 6, 1863, from 4th Louisiana Native Guard Infantry. Attached to 1st Division, 19th Army Corps, Dept. of the Gulf, to July, 1863. Defences of New Orleans to September, 1863. 2nd Brigade, 1st Division, Corps de Afrique, Dept. of the Gulf, to April, 1864.

SERVICE.--Assault on Port Hudson June 14, 1863. Surrender of Port Hudson July 9. Garrison duty at Forts St. Phillip and Jackson, Mississippi River, August 7, 1863, to February 20, 1864. Moved to Port Hudson, La., February 20-22, and duty there till April. Designation of Regiment changed to 76th United States Colored Troops April 4, 1864 (which see).

5th REGIMENT INFANTRY.

Organized at Fort St. Phillip December 8, 1863. Attached to Defences of New Orleans to January, 1864. 1st Brigade, 2nd Division, Corps de Afrique, Dept. of the Gulf, to April, 1864.

SERVICE.--Garrison duty at Fort St. Phillip, Defences of New Orleans, till April, 1864. Designation of Regiment changed to 77th United States Colored Troops April 4, 1864 (which see).

6th REGIMENT INFANTRY.

Organized at Port Hudson, La., September 4, 1863. Attached to Ullman's Brigade, Corps de Afrique, Dept. of the Gulf, to December, 1863. 2nd Brigade, 2nd Division, Corps de Afrique, to March, 1864. Garrison, Port Hudson, La., to April, 1864.

SERVICE.--Duty at Port Hudson, La., till April, 1864. Designation of Regiment changed to 78th United States Colored Troops April 4, 1864 (which see).

7th REGIMENT INFANTRY.

Organized at Port Hudson, La., August 31, 1863. Attached to Ullman's Brigade, Corps de Afrique, Dept. of the Gulf, to December, 1863. 2nd Brigade, 1st Division, Corps de Afrique, to April, 1864.

SERVICE.--Garrison duty at Port Hudson, La., till April, 1864. Skirmish at Vidalia February 7, 1864. Designation of Regiment changed to 79th United States Colored Troops April 4, 1864 (which see).

8th REGIMENT INFANTRY.

Organized at Port Hudson September 1, 1863. Attached to Ullman's Brigade, Corps de Afrique, Dept. of the Gulf, to December, 1863. 2nd Brigade, 1st Division, Corps de Afrique, to March, 1864. Garrison, Port Hudson, La., to April, 1864.

SERVICE.--Garrison duty at Port Hudson till April, 1864. Designation of Regiment changed to 80th United States Colored Troops April 4, 1864 (which see).

9th REGIMENT INFANTRY.

Organized at Port Hudson, La., September 2, 1863. Attached to Ullman's Brigade, Corps de Afrique, Dept. of the Gulf, to December, 1863. 2nd Brigade, 1st Division, Corps de Afrique, to March, 1864. Garrison, Port Hudson, to April, 1864.

SERVICE.--Garrison duty at Port Hudson, La., till April, 1864. Designation of Regiment changed to 81st United States Colored Troops April 4, 1864 (which see).

10th REGIMENT INFANTRY.

Organized at Port Hudson, La., September 1, 1863. Attached to Ullman's Brigade, Corps de Afrique, Dept. of the Gulf, to December, 1863. 2nd Brigade, 1st Division, Corps de Afrique, to April, 1864.

SERVICE.--Garrison duty at Port Hudson, La., till April, 1864. Designation of Regiment changed to 82nd United States Colored Troops April 4, 1864 (which see).

11th REGIMENT INFANTRY.

Organized at Port Hudson, La., August 17, 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, La., till April, 1864. Skirmishes at Waterproof, La., February 14-15, 1864. Designation of Regiment changed to 83rd United States Colored Troops April 4, 1864 (which see).

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.

SERVICE.--Garrison duty at Port Hudson 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).

13th REGIMENT INFANTRY.

Organized at New Orleans, La., September, 1863. Attached to 1st Brigade, 2nd Division, Corps de Afrique, Dept. of the Gulf, to December, 1863. Unattached, 13th Army Corps, Texas, to April, 1864.

SERVICE.--Garrison at Port Hudson till December, 1863. Ordered to Texas and duty at Brownsville and other points till April, 1864. Designation changed to 85th United States Colored Troops April 4, 1864 (which see).

14th REGIMENT INFANTRY.

Organized at New Orleans, La., August 12, 1863. Attached to Defences of New Orleans, Dept. of the Gulf, to September, 1863. 1st Brigade, 2nd Division, Corps de Afrique, Dept. of the Gulf, to October, 1863. District of West Florida, Dept. of the Gulf, to April, 1864.

SERVICE.--Duty at Port Hudson till October, 1863. Moved to Barrances, Fla., and duty there till April, 1864. Designation of Regiment changed to 86th U.S. Colored Troops April 4, 1864 (which see).

15th REGIMENT INFANTRY.

Organized at New Orleans, La., August 27, 1863. Attached to 1st Brigade, 2nd Division, Corps de Afrique, Dept. of the Gulf, to October, 1863. Engineer Brigade, Dept. of the Gulf, to February, 1864.

SERVICE.--Duty at New Orleans and Brashear City till February, 1864. Designation of Regiment changed to 5th Corps de Afrique Engineers, February 10, 1864 (which see).

16th REGIMENT INFANTRY.

Organized at New Orleans, La., October 8, 1863. Attached to 1st Brigade, 2nd Division, Corps de Afrique, Dept. of the Gulf, to October, 1863. Unattached 2nd Division, 13th Army Corps, Dept. of the Gulf, to April, 1864.

SERVICE.--Rio Grande Expedition, and operations on the coast of Texas October 27-December 2, 1863. At Brazos Island, Brownsville and Point Isabel, Texas, till April, 1864. Designation of Regiment changed to 87th United States Colored Troops April 4, 1864 (which see).

17th REGIMENT INFANTRY.

Organized at Port Hudson, La., September 24, 1863. Attached to 2nd Brigade, 1st Division, Corps de Afrique, Dept. of the Gulf, to April, 1864.

SERVICE.--Garrison duty at Port Hudson, La., till April, 1864. Designation of Regiment changed to 88th United States Colored Troops, April 4, 1864 (which see).

18th REGIMENT INFANTRY.

Organized at Port Hudson, La., October 9, 1863. Attached to 2nd Brigade, 2nd Division, Corps de Afrique, Dept. of the Gulf, to April, 1864.

SERVICE.--Duty at Port Hudson, La., till April, 1864. Designation of Regiment changed to 90th United States Colored Troops, April 4, 1864 (which see).

19th REGIMENT INFANTRY.

Organized at Madisonville, La., February 11, 1864. Duty at Madisonville and Lakeport, La., till March, and at Morganza, La., till May, 1864. Designation of Regiment changed to 91st United States Colored Troops, April 4, 1864 (which see).

20th REGIMENT INFANTRY.

Organized at Fort Pike, La., September 11, 1863. Attached to the Defences of New Orleans to April, 1864.

SERVICE.--Garrison Forts Pike, Macomb and Bienvenue till April, 1864. Designation of Regiment changed to 91st United States Colored Troops, April 4, 1864 (which see).

22nd REGIMENT INFANTRY.

Organized at New Orleans, La., September 30, 1863. Attached to District of La Fourche, Dept. of the Gulf, to February, 1864. 2nd Brigade, 2nd Division, Corps de Afrique, to March, 1864. 1st Brigade, 1st Division, Corps de Afrique, to April, 1864.

SERVICE.--Duty at New Orleans, Brashear City, New Iberia and in District of La Fourche till January, 1864. Ordered to Port Hudson January 4, and duty there till April, 1864. Moved to Brashear City and duty there till April, 1864. Designation of Regiment changed to 92nd United States Colored Troops, April 4, 1864 (which see).

25th REGIMENT INFANTRY.

Organized at New Iberia, La., November 21, 1863. Attached to 1st Brigade, 2nd Division, Corps de Afrique, Dept. of the Gulf, to March, 1864. District of La Fourche to April, 1864.

SERVICE.--Duty at New Iberia and in District of La Fourche till January, 1864. Moved to Franklin, La., January 5 and duty there till March 21. Moved to Brashear City and duty there till April. Designation of Regiment changed to 93rd United States Colored Troops April 4, 1864 (which see).