Red River campaign order of battle: Union

The following is the organization of the Union forces engaged in the Red River campaign, during the American Civil War in 1864. Order of battle compiled from the army organization during the campaign. The Confederate order of battle is listed separately.

Military rank

 * MG = Major General
 * BG = Brigadier General
 * Col = Colonel
 * Ltc = Lieutenant Colonel
 * Maj = Major
 * Cpt = Captain
 * Lt = 1st Lieutenant
 * RA = Rear Admiral
 * Cmdr = Commander
 * Lcdr = Lieutenant Commander
 * Ltn = Lieutenant (navy)
 * Mstr = Master

Other

 * w = wounded
 * mw = mortally wounded
 * k = killed
 * c = captured

Naval artillery

 * 100-pdr PR = 100-pounder Parrott rifled gun
 * 50-pdr DR = 50-pounder Dahlgren gun (rifled)
 * 32-pdr = 32-pounder gun (smoothbore)
 * 30-pdr PR = 30-pounder Parrott rifled gun
 * 20-pdr PR = 20-pounder Parrott rifled gun
 * 24-pdr how = M1841 24-pounder howitzer
 * 12-pdr how = M1841 12-pounder howitzer
 * 11-inch = 11-inch smoothbore gun
 * 9-inch = 9-inch smoothbore gun
 * 8-inch = 8-inch smoothbore gun

Army of the Gulf (Department of the Gulf)
MG Nathaniel P. Banks, Commanding ''Manpower and guns are from Official Records. All manpower strengths are "Aggregate Present". Regiments and other units in parentheses were not present and were not included in unit strengths.
 * Headquarters troops (Companies A and B): Cpt Richard W. Francis
 * Escort (Company C): Cpt Frank Sayles

XIII Corps
BG Thomas E. G. Ransom (w) BG Robert A. Cameron

XIX Corps
MG William B. Franklin (w)

Army of the Tennessee (detachment)
BG Andrew J. Smith

Army of the Gulf (Department of the Gulf)
MG Nathaniel P. Banks, Commanding
 * Headquarters troops (Companies A and B): Cpt Richard W. Francis
 * Escort (Company C): Cpt Frank Sayles

XIII Corps (detachment)
MG John A. McClernand Corps headquarters and 2nd Brigade, 1st Division, reached Alexandria, April 26. Warren brought additional troops from Texas but they only reached Fort De Russy and are not listed.

XIX Corps
MG William B. Franklin (until May 2) BG William H. Emory

Army of the Tennessee (detachment)
BG Andrew J. Smith

XVI Corps
XVI Corps received approximately 1,000 replacements on April 26.

Mississippi Flotilla
RA David Dixon Porter