47th Regiment. Colonel Hiram Schofield.—Organized at Lake Providence, La., May, 1863, as the 8th Regiment Louisiana Volunteers; changed to 47th Regiment U. S., March, 1864. Battles: Lake Providence, Liverpool Heights, Yazoo City, Fort Blakely. Mustered out January, 1866.
48th Regiment, Colonel F. M. Crandal.—Organized at Lake Providence and Goodrich's Landing, La., May, 1863, as the 10th Regiment Louisiana Volunteers; changed to 48th Regiment U. S., March, 1864. Battles: Bayou Tensa, Vicksburg, Fort Blakely. Mustered out January, 1866.
49th Regiment, Colonel Van E. Young.—Organized at Miliken's Bend, La., May, 1863, as the 11th Regiment Louisiana Volunteers; changed to 49th Regiment U. S., March, 1864. Battles: Miliken's Bend, Waterproof. Mustered out March, 1866.
50th Regiment, Colonel Charles A. Gilchrist.—Organized at Vicksburg, Miss., July, 1863, as the 12th Regiment Louisiana Volunteers; changed to 50th Regiment U. S., March, 1864. Battle: Fort Blakely. Mustered out March, 1866.
51st Regiment, Colonel A. Watson Webber.—Organized at Miliken's Bend, La., and Vicksburg, Miss., May, 1863, as the 1st Regiment Mississippi Volunteers; changed to 51st Regiment U. S., March, 1864. Battles: Miliken's Bend, Ross Landing, Floyd, Fort Blakely. Mustered out June, 1866.
52d Regiment, Colonel George M. Ziegler.—Organized at Vicksburg, Miss., July 27th, 1863, as the 2d Regiment Mississippi Volunteers; changed to 52d Regiment U. S., March, 1864. Battles: Vicksburg, Coleman's Plantation, Bayou Bidell. Mustered out May, 1866.
53d Regiment, Colonel Orlando C. Risdon.—Organized at Warrentown, Miss., May, 1863, as the 3d Regiment Mississippi Volunteers; changed to 53d Regiment U. S., March, 1864. Battles: Haines' Bluff, Grand Gull, White River. Mustered out March, 1866.
54th Regiment, Lieutenant-Colonel Charles Fair.—Organized in Arkansas September, 1863, as the 2d Regiment Arkansas Volunteers; changed to 54th Regiment U. S., March, 1864. Battles: Cow Creek, Arkansas River, Sabine River, Fort Gibson, Cabin Creek. Mustered out August, 1866.
54th Regiment Massachusetts Volunteers, Colonel E. N. Hallowell.—Organized at Camp Meigs, Readville, Mass., March, 1863. Battles: James Island, Fort Wagner, Olustee, Honey Hill, Boykin's Mill, before Charleston. Mustered out August, 1865.
55th Regiment, Colonel N. B. Bartman.—Organized at Corinth, Miss., May, 1863, as the 1st Regiment Alabama Volunteers; changed to 55th Regiment U. S., 1864. Battles: Ripley, Brice's Cross Roads, Moscow, Waterford. Mustered out December, 1865.