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

1st REGIMENT INFANTRY (AFRICAN DESCENT)

Organized at Beaufort, S.C., January 31, 1863. Attached to District of Beaufort, S.C., 10th Army Corps, Dept. of the South, to January, 1864. Barton's Brigade, District of Hilton Head, S.C., 10th Corps, to February, 1864.

SERVICE.--Before muster, 3 Companies on Expedition along coasts of Georgia and Florida November 3-10, 1862 Spalding's, on Sapello River, Ga., November 7 (Co. "A"). Doboy River November 8. Duty at Beaufort, S.C., and Port Royal Island till March, 1863. Expedition from Beaufort up St. Mary's River in Georgia and Florida January 23-February 1. Skirmish at Township January 26. Expedition from Beaufort to Jacksonville, Fla.. March 6-10. Occupation of Jacksonville March 10-31. Camp Jackson March 10. Operations near Jacksonville March 22-31. Skirmish near Jacksonville March 29. At Beaufort, S.C., till January, 1864. Expedition up South Edisto River July 9-11, 1863. Action, Williston Bluff, Pon Pon River, July 10. Expedition to Pocotaligo, S.C., November 23-25 (Cos. "E" and "K"). Skirmish near Cunningham's Bluff November 24. (Cos. "C" and "K" at Hilton Head, S.C., till September, 1863, then moved to Beaufort, S.C.; Cos. "A" and "F" moved to Hilton Head September, 1863, returning to Beaufort, S.C., October 2.) Regiment moved to Hilton Head, S.C., January, 1864. Expedition to Jacksonville, Fla., February 6-8. Designation of Regiment changed to 33rd U.S. Colored Troops February 8, 1864, which see.

2nd REGIMENT INFANTRY (AFRICAN DESCENT)

Organized at Beaufort and Hilton Head, S.C., May 22, 1863. Attached to Districts of Hilton Head and Beaufort, S.C., 10th Army Corps, Dept. of the South, to July, 1863. 3rd Brigade, 1st Division, Morris Island, S.C., 10th Corps, July, 1863. 2nd Brigade, Morris Island, S.C., 10th Corps, to August, 1863. 4th Brigade, Morris Island, S.C., 10th Corps, to November, 1863. 3rd Brigade, Morris Island, S.C., 10th Corps, to January, 1864. Montgomery's Brigade, District Hilton Head, S. C., to February, 1864.

SERVICE.--Duty at Hilton Head, S.C., to March, 1863. Expedition to Jacksonville, Flsa, March 6-10. Occupation of Jacksonville March 10-31. Operations about Jacksonville March 28-31. Evacuation of Jacksonville March 31. At Beaufort, S.C., till July. Raid on Combahee River June 2. Expedition to James Island, S.C.. July 7-17. Engagement at Grimball's Landing July 16. Operations on Morris Island against Forts Wagner and Gregg July 18-September 7. Capture of Forts Wagner and Gregg September 7. Operations against Fort Sumpter and Charleston, S.C., September 7, 1863, to January 29, 1864. Moved to Hilton Head,

S.C.. thence to Jacksonville, Fla., February 5-7. Designation of Regiment changed to 34th U.S. Colored Troops February 8, 1864, which see.

3rd REGIMENT INFANTRY (AFRICAN DESCENT)

Organized at Hilton Head, S.C., June, 1863. Attached to District of Hilton Head, S.C., 10th Army Corps, Dept. South, to January, 1864. Barton's Brigade, District Hilton Head, S.C., to February, 1864. 3rd Brigade, Vodges' Division, District of Florida, to March, 1864.

SERVICE.--Post duty at Hilton, Head, S.C., till February, 1864. Moved to Jacksonville. Fla., February 6-8, and duty there till March. Designation of Regiment changed to 21st U.S. Colored Troops March 14, 1864, which see.

4th REGIMENT INFANTRY (AFRICAN DESCENT)

Organized at Fernandina, Fla., July, 1863. Attached to Post of Fernandina, Fla., Dept. South, to January, 1864. Barton's Brigade, District of Hilton Head, S.C., to February, 1864. 3rd Brigade, Vodges' Division, District of Florida, to March, 1864.

SERVICE.--Duty at Fernandina, Fla., till January, 1864. At Hilton Head, S.C., till February, 1864. Moved to Jacksonville, Fla., February 6-8, and duty there till March. Regiment consolidated with 3rd South Carolina Infantry to form 21st U.S. Colored Troops March 14, 1864.

5th REGIMENT INFANTRY (AFRICAN DESCENT)

Organization of Regiment not completed. Transferred to 3rd and 4th South Carolina Infantry