U.S. Cavalry Regiments

• 1st Regiment of Dragoons, Colonel Richard B. Mason
• 2nd Regiment of Dragoons, Colonel William S. Harney
  William S. Harney
  William Selby Harney was a cavalry officer in the U.S. Army during the Mexican-American War and the Indian Wars. He was born in what is today part of Nashville, Tennessee but at the time was known as Haysborough....
  
  
• Regiment of Mounted Riflemen, Colonel Persifor F. Smith

One Year U.S. Dragoon Regiment

• 3rd Regiment of Dragoons, Colonel Edward G. W. Butler, (appointed from Louisiana)

U.S. Artillery Regiments

• 1st Regiment of Artillery, Lt. Colonel Benjamin K. Pierce
• 2nd Regiment of Artillery, Colonel James Bankhead
• 3rd Regiment of Artillery, Colonel William Gates
• 4th Regiment of Artillery, Lt. Colonel Matthew M. Payne

U.S. Infantry Regiments

• 1st Regiment of Infantry
  U.S. 1st Infantry Regiment
  The 1st Infantry Regiment draws its lineage from a distinguished line of post Revolutionary War Infantry Regiments and is credited with thirty-nine campaign streamers....
  
  , Colonel William Davenport
• 2nd Regiment of Infantry, Lt. Colonel Bennet Riley
• 3rd Regiment of Infantry, Lt. Colonel Ethan A. Hitchcock
• 4th Regiment of Infantry, Lt. Colonel John Garland
• 5th Regiment of Infantry
  5th Infantry Regiment (United States)
  The 5th Infantry Regiment is the third-oldest infantry regiment of the United States Army, tracing its origins to 1808...
  
  , Lt. Colonel James S. Mcintosh
• 6th Regiment of Infantry, Colonels Zachary Taylor
  Zachary Taylor
  Zachary Taylor was the 12th President of the United States and an American military leader. Initially uninterested in politics, Taylor nonetheless ran as a Whig in the 1848 presidential election, defeating Lewis Cass...
  
  ; Newman S. Clark
• 7th Regiment of Infantry
  7th Infantry Regiment (United States)
  The United States Army's 7th Infantry Regiment, known as "The Cottenbalers" from an incident that occurred during the Battle of New Orleans, while under the command of Andrew Jackson, when soldiers of the 7th Infantry Regiment held positions behind a breastwork of bales of cotton during the...
  
  , Lt. Colonel Joseph Plympton
• 8th Regiment of Infantry, Colonel William J. Worth
  William J. Worth
  William Jenkins Worth was a United States general during the Mexican-American War.-Early life:Worth was born in 1794 in Hudson, New York, to Thomas Worth and Abigail Jenkins. Both of his parents were Quakers, but he rejected the pacifism of their faith...
  
  

One Year U.S. Infantry Regiments

• 9th Regiment of Infantry, Colonel Trueman B. Ransom, (appointed from Vermont)
• 10th Regiment of Infantry, Colonel Robert E. Temple, (appointed from New York)
• 11th Regiment of Infantry
  11th Infantry Regiment (United States)
  The 11th Infantry Regiment is a regiment in the United States Army.-The First 11th Infantry:Under the authority granted the President by the Act of July 16, 1798, to raise twelve additional regiments of infantry, the first 11th Infantry came into existence in the Army of the United States in...
  
  , Colonel Albert C. Ramsay, (appointed from Pennsylvania)
• 12th Regiment of Infantry, Colonel Millidge L. Bonhain, (appointed from South Carolina)
• 13th Regiment of Infantry
  13th Infantry Regiment (United States)
  The 13th Infantry Regiment is a United States Army infantry regiment whose battalions are currently tasked as basic training battalions.- History :...
  
  , Colonel Robert M. Ecbols, (appointed from Georgia)
• 14th Regiment of Infantry, Colonel William Trousdale, (appointed from Tennessee)
• 15th Regiment of Infantry, Colonel George W. Morgan, (appointed from Ohio)
• 16th Regiment of Infantry
  16th Infantry Regiment (United States)
  The 16th Infantry Regiment is a regiment in the United States Army.-Formation:The 34th Infantry Regiment and 11th Infantry Regiment consolidated into the 16th Infantry Regiment on 3 March 1869. The 11th Infantry's history prior to the consolidation is normally included with the 16th's.-U.S...
  
  , Colonel John W. Tibbatts, (appointed from Kentucky)
• Regiment of Voltigeurs and Foot Riflemen
  Regiment of Voltigeurs and Foot Riflemen
  The Regiment of Voltigeurs and Foot Riflemen, was one of nine new infantry regiments authorized by Congress in 1847 for one year service in the Mexican-American War. Unlike the others it was not numbered but was named, called the Regiment of Voltigeurs and Foot Riflemen. It was to be a special...
  
  , Colonel Timothy P. Andrews, (appointed from District of Columbia)

Alabama

• Battalion of Alabama Volunteers, for 3 months (4 companies); May–August 1846. Lt. Colonel Phillip H. Raiford
• 3 Independent Companies of Alabama Volunteers, for 6 months; received for 3 months, May–August 1846.
  • 1st Independent Company of Alabama Volunteers, for 6 months; Captain Robert Desha
  • 2nd Independent Company of Alabama Volunteers, for 6 months; Captain William H. Platt
  • 3rd Independent Company of Alabama Volunteers, for 6 months; Captain Rush Elmore
• Independent Company of Alabama Mounted Volunteers, for during the war with Mexico; June 1847 – July 1848. Captain James McGee
• Battalion of Alabama Volunteers, for during the war with Mexico (5 companies); November and December 1847 – June 1848. Colonel John R. Coffey

Arkansas

Arkansas Militia and the War with Mexico

The history of the Arkansas Militia and the War with Mexico began when the Territory of Arkansas gained admission to the Union as the 25th State on June 15, 1836. Within days the State Governor received a request for troops to relieve federal troops securing the border with Mexico...

 

• Regiment of Arkansas Mounted Volunteers, for 12 months; June 1846 – June 1847. Colonels, Archibald Yell (killed at Buena Vista); John Selden Roanne (Lt. Colonel to February 28, 1847)
• Independent Companies of Arkansas Mounted Volunteers in the Mexican War:
  • 1st Independent Company, Arkansas Mounted Volunteers; May 27, 1847 – June 24, 1848. Captain Gaston Meares (late Lt. Colonel Arkansas Volunteer Regiment).
  • 2nd Independent Company, Arkansas Mounted Volunteers; June 15, 1847 – June 1848. Captain. Stephen B. Euyart. Served in New Mexico
    New Mexico
    New Mexico is a state located in the southwest and western regions of the United States. New Mexico is also usually considered one of the Mountain States. With a population density of 16 per square mile, New Mexico is the sixth-most sparsely inhabited U.S...
    
    , and on the Rio Grande
    Rio Grande
    The Rio Grande is a river that flows from southwestern Colorado in the United States to the Gulf of Mexico. Along the way it forms part of the Mexico – United States border. Its length varies as its course changes...
    
    .

California

• Battalions of California Volunteers, for 3 and for 6 months; July and October 1846 – April 1847. Lt. Colonel Commanding John C. Freemont (bvt Captain Topographic Engineers and Major of Volunteers, July 23 and October 26, 1846 – April 19, 1847).
  • Mounted Rifle Company A. Captain Richard Owens
  • Mounted Rifle Company B. Captain Henry S. Ford
  • Mounted Rifle Company C. Captain Granville P. Swift
  • Mounted Rifle Company D. Captain John Sears
  • Mounted Rifle Company E. Captain John Grigsby
  • Mounted Rifle Company F. Captain Landsford W. Hastings
  • Mounted Rifle Company G. Captain B. K. Thompson
  • Mounted Rifle Company H. Captain Richard T. Jacobs (Spy Company chiefly of native Indians)
  • Artillery Company A. Captain John K. Wilson (Midshipman U.S. Navy).
  • Artillery Company. William Findlay
• Mounted Rifle Volunteers, at San Diego; November 1846 – March 11, 1847. Major Archibald H. Gillespie
  Archibald H. Gillespie
  Major Archibald H. Gillespie was an officer in the United States Marine Corps during the Mexican-American War....
  
   (1st Lt. U.S. Marines)
  • Mounted Rifle Company. Cap­tain Samuel Gibson (wounded at San Pasqual)
  • Company of Native Californians. Captain Santiago E. Arguello
    Santiago E. Arguello
    Santiago E. Arguello Santiago E. Arguello, son of Santiago Arguello, was born August 18, 1813. Collector of revenue at San Diego he took part in the civil conflict against Alvarado in 1836-1837 and was a Deputy in assembly in 1845-46...
    
    

Florida

• 1st Independent Company of Florida Volunteers, for 12 months; February 1847 – March 1848. Captain William W. I. Kelly. Served at Guadaloupe and Santa Fe, Mexico.
• 2nd Independent Company of Florida Volunteers, for during the Mexican War; August 1847 – July 1848. Captains: K. G. Livingston, (died February 9, 1848 at Guadaloupe, Mexico); George Holmes (2nd Lieutenant to March 1848).

Georgia

• Regiment of Georgia Volunteers, for 12 months; June 1846 – May 1847. Colonel Henry R. Jackson. Captain Francis Jackson
• Battalion of Georgia Volunteers, for during the war with Mexico, (5 companies); July 1847 – July 1848. Lt. Colonel Isaac G. Seymour.
• Battalion of Georgia Mounted Volunteers, for during the war with Mexico, (6 companies); September 1847 – July 1848. Lt. Colonel James S. Calhoun (late Capt. in Jackson's Regt.)
• Independent Company of Georgia Mounted Men; May 1847 – August 1848. Captain John Loyall.

Illinois

• 1st Regiment of Illinois Volunteers, for 12 months; June 1846 – June 1847. Colonels John J. Hardin (Killed at BuenaVista); William Weatherford (Lt. Colonel to February 26, 1847).
• 2nd Regiment of Illinois Volunteers, for 12 months; June 1846 – June 1847. Colonel William H. Bissell.
• 3rd Regiment of Illinois Volunteers, for 12 mouths; July 1846 – May 1847. Colonel Ferris Foreman
  Ferris Foreman
  Ferris Foreman was a lawyer, politician, and American soldier during the Mexican American War and Colonel commanding a Volunteer Regiment and the District of Southern California during the American Civil War.-Early Life:...
  
  .
• 4th Begiment of Illinois Volunteers, for 12 mouths; July 1846 – May 1847. Colonel Edward D. Baker
  Edward Dickinson Baker
  Edward Dickinson Baker was an English-born American politician, lawyer, military leader. In his political career, Baker served in the U.S. House of Representatives from Illinois and later as a U.S. Senator from Oregon. A long-time close friend of U.S. President Abraham Lincoln, Baker served as U.S...
  
  .
• lst Regiment of Illinois Volunteers, for during the war with Mexico; June 1847 – October 1848. Colonel Edward W. B. Newby
  Edward W. B. Newby
  Edward W. B. Newby American soldier, a Colonel of Volunteers in the Mexican American War, a Captain of Cavalry in the early campaigns of the American Indian Wars in the west and a Major in the American Civil War....
  
  .
• 2nd Regiment of Illinois Volunteers, for during the war with Mexico; August 1847 – July 1848. Colonel James Collins.
• Independent Companies of Illinois Mounted Volunteers, for the war with Mexico.
  • 1st Company Illinois Mounted Volunteers; May 21, 1847 – November 7, 1848. Captain Adams Dunlap (served with Brigadier General Wool)
  • 2nd Company Illinois Mounted Volunteers; August 1847 – July 26, 1848. Captain Wyatt B. Stapp
  • 3rd Company Illinois Mounted Volunteers; August 13, 1847 – October 26, 1848. Captain Michael K. Lawler (served with Brigadier General Wool)
  • 4th Company Illinois Mounted Volunteers; September 13, 1847 – July 25, 1848. Captain Josiah Littel

Indiana

• 1st Regiment of Indiana Volunteers, for 12 months; June 1846 – June 1847. Colonel James P. Drake.
• 2nd Regiment of Indiana Volunteers, for 12 months; June 1846 – June 1847. Colonels Joseph Lane (appointed Brigadier General U.S. Volunteers, July 1, 1846); William A. Bowles.
• 3rd Regiment of Indiana Volunteers, for 12 months; June 1846 – June 1847. Colonel James H. Lane.
• 4th Regiment of Indiana Volunteers, for during the war with Mexico; June 1847 – July 1848. Colonel. Willis A. Gorman (late Major of J. H. Lane's Regt.)
• 5th Regiment of Indiana Volunteers, for during the war with Mexico; October 1847 – July 1848. Colonel James H. Lane (late Colonel 3rd Regiment Indiana 12 months Volunteers).

Iowa

• Battalion of Iowa "Mormon" Volunteers
  Mormon Battalion
  The Mormon Battalion was the only religiously based unit in United States military history, and it served from July 1846 to July 1847 during the Mexican-American War. The battalion was a volunteer unit of between 534 and 559 Latter-day Saints men led by Mormon company officers, commanded by regular...
  
  , for 12 months, (5 companies); received at Council Bluffs July 16, 1846 – July 1847 at Los Angeles. Lt. Colonels James Allen (Captain 1st U.S. Dragoons, died at Fort Leavenworth August 23, 1846); Andrew Jackson Smith (1st Lieutenant 1st Dragoons, acting August 30, 1846); Philip St. George Cooke (Captain 1st Dragoons, October 13, 1846).

Kentucky

• Regiment of Kentucky Cavalry Volunteers, for 12 months; June 1846 – July 1847. Colonel Humphrey Marshall (former 2nd Lt 1. U.S. Dragoons.)
• 1st Regiment of Kentucky Volunteers, for 12 months, "Louisville Legion"; May 1846 – May 1847. Colonel Stephen Ormsby.
• 2nd Regiment of Kentucky Volunteers, for 12 months; June 1846 – June 1847. Colonels William R. McKee (former 1st Lt. 3rd. U.S. Artillery, killed.); Lt. Colonel I. Henry Clay Jr. (former 2nd Lt. 2nd. U.S. Artillery, killed); Major Gary H. Fry (former 2nd Lt, 3rd. U.S. Infantry).
• 3rd Regiment of Kentucky Volunteers, for during the war with Mexico; October 1847 – July 1848. Colonel Manlius V. Thompson.
• 4th Regiment Kentucky Volunteers, for during the war with Mexico; October 1847 – July 1848. Colonel John S. Williams (late Capt. of Independent Company)
• Independent Company of Kentucky Volunteers; May 1846 – May 1847. Captains John S. Williams (served with the 6th U.S. Infantry).

Louisiana

• Louisiana Battalion of Volunteer Artillery, for 3 months; (2 companies); August 21 – November 1845. Major Louis Gaily.
• 2nd Battalion of Louisiana Volunteer Artillery, for 6 months, (3 companies), received for 3 months, May–July 1846. Major Louis Gaily (commander 1st Battery).
• Brigade of Louisiana Volunteers, for 6 months, (6 regiments); received, for 3 months. May and June–August 1846. Brigadier General Persifor F. Smith.
  • 1st Regiment, P. F. Smith's Brigade of Louisiana Volunteers. Colonel James B. Walton.
  • 2d Regiment, P. F. Smith's Brigade of Louisiana Volunteers. Colonel James H. Dakin.
  • 3rd Regiment, P. F. Smith's Brigade of Louisiana Volunteers. Colonel Samuel F. Marks.
  • 4th Regiment, P. F. Smith's Brigade of Louisiana Volunteers. Colonel Horatio Davis.
  • 5th Regiment, P. F. Smith's Brigade of Louisiana Volunteers. Colonel Baillie Peyton.
• Independent Company of Louisiana Volunteers, for 12 months; July 1846 – May 1847. Captain Albert G. Blanchard (former 1st Lieutenant in 3rd U.S. Infantry, and Captain 3rd Louisiana Volunteers)
• Regiment of Louisiana Volunteers, for during the war with Mexico; December 1846 – July 1848. Colonel Lewis G. De Russy (formerly Capt. U.S. Artillery and Paymaster)
• Battalion of Louisiana Volunteers, for during the war with Mexico, (5 companies); May 1847 – July 1848. Lt. Colonel Charles Fiesca (late Major 4th Regiment Louisiana Volunteers)
• Battalion of Louisiana Mounted Volunteers, for 12 months, (5 companies); July and August 1847 – July 1848. Lieutenant Colonel Walter F. Biscoe (late 2nd Lieutenant in 2nd Regiment Louisiana Volunteers)

Maryland and District of Columbia

• Battalion of Maryland and District of Columbia Volunteers, for 12 months, (6 companies); May 1846 – May 1847. Commanders: Lt. Colonel William H. Watson (killed at Monterey); brevet Major Robert C. Buchanan (Captain 4th U.S. Infantry Regiment, from November 1846).
• Regiment of Maryland and District of Columbia Volunteers, for during the war with Mexico, (8 companies); May and June 1847 – July 24, 1848. Colonel George W. Hughes (Captain and brevet Lt. Colonel Topographic Engineers).
• 3 additional Separate Companies were attached to this Regiment:
  • Tennessee Company of Mounted Volunteers; May 1847 to July 1848. Captain C. Roberdeau Wheat (served with 2nd Dragoons; Major General Scott's bodyguard)
  • Pittsburg Company; October 1847 to July 1848. Captain Thomas A. Rowley.
  • Independent Company; June 8, 1847 – August 1, 1848. Captains James Boyd, (Captain in Watson's Battery; killed at Rio Calaboso, July 12, 1847); Joseph R. West, (served at Tampico under Colonel De Russy)

Massachusetts

• Regiment of Massachusetts Volunteers, for during the Mexican War, January and February, 1847 – July 1848. Colonels Caleb Gushing, (January 15, 1847: promoted to Brig. General); Isaac H. Wright (Lt Colonel to May 27. 1847).

Michigan

• Regiment of Michigan Volunteers, for during the war with Mexico; December 1847 – July 1848. Colonel Thomas B. W. Stockton (former 1st Lieutenant, 1st. U.S. Infantry).
• Independent Company of Michigan Volunteers, for during the war with Mexico, June 18, 1847 – June 30, 1848. Captain Morgan L. Gage.

Mississippi

• 1st Regiment of Mississippi Rifles
  Mississippi Rifles
  The "Mississippi Rifles" or the 155th Infantry Regiment, is Mississippi's oldest National Guard unit. Its history predates statehood, back to June 1799, and it is the seventh oldest infantry regiment in the United States Army...
  
  , Volunteers for 12 months; June 1846 – June 1847. Colonel Jefferson Davis
  Jefferson Davis
  Jefferson Finis Davis , also known as Jeff Davis, was an American statesman and leader of the Confederacy during the American Civil War, serving as President for its entire history. He was born in Kentucky to Samuel and Jane Davis...
  
   (former 1st Lieutenant and Adjutant 1st. Dragoons; severe wound, at Buena Vista).
• 2nd Regiment of Mississippi Volunteers, for during the war with Mexico; received January 1847 – July 1848. Colonels Reuben Davis (resigned October 1847); Charles Clark (Captain to October 16, 1847).
• 1st Battalion of Mississippi Rifle Volunteers, for during the war with Mexico, (5 companies); October and November 1847 – June 1848. Lt. Colonel James Patton Anderson.

Missouri

• 1st Regiment of Missouri Mounted Volunteers, for 12 months; (8 companies); June 1846 – June 1847. Colonel Alexander W. Doniphan.
• Battalion of Missouri Volunteers, for 12 months; (3 Light Artillery companies; 2 Infantry companies); June and July 1846 – June and July 1847. Major Meriwether Lewis Clark (former 2nd Lieutenant 6th U.S. Infantry and Aide de Camp to General Scott).
• Battalion of Missouri Mounted Volunteers, for 12 months,(4 companies, first mustered in Price's regiment); August 1846 – August 1847. Lt. Colonel David Willock.
• 9 Companies of Missouri Volunteers, for 12 months; received at Fort Leavenworth
  Fort Leavenworth
  Fort Leavenworth is a United States Army facility located in Leavenworth County, Kansas, immediately north of the city of Leavenworth in the upper northeast portion of the state. It is the oldest active United States Army post west of Washington, D.C. and has been in operation for over 180 years...
  
   August and September 1846, order of service countermanded by War Department, September 1846.
• Battalion of Missouri Volunteers for during the war with Mexico, (5 companies); May 1847 – October 1848. Lt. Colonel Alton R. Easton (late Colonel "St. Louis Legion.")
• 3rd Regiment of Missouri Mounted Volunteers, for during the war with Mexico; July 1847 – October 1848. Colonel John Ralls.
• Battalion of Missouri Mounted Volunteers, for during the war with Mexico, (5 companies); August 1847 – November 1848. Lt. Colonel Ludwell E. Powell.
• Battalion of Missouri Mounted Volunteers, for during the war with Mexico, (5 companies); September 1847 – October 1848. Lt. Colonel William Gilpin (late Major of Doniphan's Regt.)

New Jersey

• Battalion of New Jersey Volunteers, for during the Mexican war, (4 companies); September 1847 – July 1848. Lt. Colonel Dickinson Woodruff.

New York

• 1st Regiment of New York Volunteers, for service in California and during the war with Mexico; August–October 1848. Colonel Jonathan D. Stevenson
  Jonathan D. Stevenson
  Jonathan Drake Stevenson was born in New York; won a seat in the New York State Assembly ; was the commanding officer of the First Regiment of New York Volunteers during the Mexican-American War in California; entered California mining and real estate businesses; and died in San Francisco on...
  
  .
• 2nd Regiment of New York Volunteers, for during the war with Mexico; November 1846 – August 1848. Colonel Ward B. Burnett (former 2nd Lt. 2nd U.S. Artillery, severely wounded at Churubusco).

North Carolina

• Regiment of North Carolina Volunteers, for during the war with Mexico; January 1847 – August 1848. Colonel Robert T. Paine.

Ohio

• 1st Regiment of Ohio Volunteers, for 12 months; June 1846 – June 1847. Colonel Alexander M. Mitchell (former 2nd Lieutenant, 4th U.S. Infantry, wounded at Monterey).
• 2nd Regiment of Ohio Volunteers, for 12 mouths; June and July 1846 – June 1847. Colonel George W. Morgan.
• 3rd Regiment of Ohio Volunteers, for 12 mouths; June 1846 – June 1847. Colonel Samuel R. Curtis (former 2nd Lieutenant, 7th U.S. Infantry and Adj. General of Ohio).
• 4th Regiment of Ohio Volunteers, 1st Regiment for during the War with Mexico; May and June 1847 – July 1848. Colonel Charles H. Brough.
• 5th Regiment of Ohio Volunteers, 2nd Regiment for during the war with Mexico; September 1, 1847 – July 1848. Colonel William Irvin (late Lt. Colonel of Morgan's Regt.).
• Independent Companies of Ohio Volunteers, for during the war with Mexico.
  • 1st Company of Mounted Men; June 1, 1847 – August 2, 1848. Captain John R. Duncan.
  • 2nd Company of Foot; October 1847 – July 1848, (served with Irvin's Regt.). Captains. William Keimeally (died, reported suicide, at Rio Frio, December 21, 1847). William H. Lytle.
  • 3rd Company of Foot; October 26, 1847 – July 17, 1848. Captain Robert F. Riddle.

Pennsylvania

• 1st Regiment of Pennsylvania Volunteers, for during the war with Mexico; December 1846 – July and August 1848. Colonel. Francis M. Wynkoop.
• 2nd Regiment of Pennsylvania Volunteers, for during the war with Mexico, (12 companies); Januuary 1847 – July 1848. Colonels William B. Roberts (died in City of Mexico October 3, 1847); John W. Geary (Lt. Colonel to November 3, 1847, wound, at Chapultepec.)

South Carolina

• Regiment of South Carolina Volunteers, for during the war with Mexico, "Palmetto Regiment"; December 1846 – June and July 1848. Colonel Pierce M. Butler (twice ironnded, and billed lit Churibusco).

Tennessee

• Regiment of Tennessee Mounted Volunteers, for 12 months; June 1846 – May 1847. Colonel Jonas E. Thomas.
• 1st Regiment of Tennessee Volunteers, for 12 months, (12 companies); May and June 1846 – May 1847. Colonel William B. Campbell (former Capt. in Trousdale's Regt. in Florida War).
• 2nd Regiment of Tennessee Volunteers, for 12 months, (8 companies); June 1846 – May 1847. Colonel William T. Haskell.
• 3rd Regiment of Tennessee Volunteers, for during the war with Mexico; October 1847 – July 1848. Colonel Benjamin F. Cheatham (late Capt. in Campbell's Regt.)
• 4th Regiment of Tennessee Volunteers, for during the war with Mexico, (9 companies); November 1847 – August 1848. Colonel Richard Waterhouse (late Major in Thomas' Regt. Cav.)
• 5th Regiment of Tennessee Volunteers, for during the war with Mexico, (11 companies); December 1847 – July 1848. Colonel George R. McClellan.

Texas

• General Staff of Texas Volunteers; July 1846 – October 1846. Major General Gov. James Pinckney Henderson
  James Pinckney Henderson
  James Pinckney Henderson was a United States and Republic of Texas lawyer, politician, soldier, and the first Governor of the State of Texas....
  
  .
• 1st Regiment of Texas Mounted Rifle Volunteers, June and July, and discharged September and October 1846. Colonel John C. Hays (late Major of a Bttn. in the service of Texas.)
• 2nd Regiment of Texas Mounted Volunteers, June and July, and discharged October 1846. Colonel George T. Wood.
• 3rd Regiment of Texas Rifle Volunteers, May, June and July, and discharged August 1846. Colonel Albert Sidney Johnston
  Albert Sidney Johnston
  Albert Sidney Johnston served as a general in three different armies: the Texas Army, the United States Army, and the Confederate States Army...
  
   (former Adjutant U.S. 6th Infantry and Adjutant General of Texas.)
• Regiment of Texas Mounted Volunteers, for 6 months (7 companies), for frontier defence; July, and discharged September 1846. Colonel William C. Young.
• Battalion of Texas Mounted Volunteers, of (4 companies); March 1847 – June 1848. Majors comdg. M. H. Chevallie (late of Major Hays 1st Regt.; resigned 31 August 47); Walter P. Lane (Captain to October 1847).
• Regiment of Texas Mounted Volunteers, for 12 months and during the war; April 1847 – May 1848. Colonel John C. Hays (Col. of 1st Regt. Vols, and continued in Service).
• Regiment of Texas Mounted Volunteers, for 6 months, for frontier defence; May 11, and discharged June 1847. Colonel John C. Hays (Col. of Regt. in Mexico).
• Battalion of Texas Mounted Volunteers, (5 companies), for local defence; April – June 5, 1847. Major Thomas J. Smith.
• Independent Companies of Texas Volunteers.
  • 1st Mounted Company; September 25, 1845 – June 25, 1846. Captain John T. Price.
  • 2nd Company of Rangers; September and December 10, 1845 and March 1846, for two periods of 3 months each – July 1846. Captain Peter Hansbrough Bell (had before served on frontier defence of Texas, under Major Hays from September 1845).
  • 3rd Mounted Company; October 1, 1845 and January 1846 – September 1846. Captain David C. Cady.
  • 4th Mounted Company; May and August 1846 – September 18, 1846. Captain Ben M'Culloch.
  • 5th Mounted Company; July–October 1846. Captain Eli Chandler.
  • 6th Mounted Company; July 1846 – July 1847. Captain Mabery B. Gray (late 1st Lt. in Bell's co.)
  • 7th Company of Foot Volunteers (first enrolled in Mississippi); August 1846 – January 7, 1847. Captain William E. Shivors (late Capt in Johnston's 3rd Rifle Regt.)
  • 8th Rifle Company; (late Seefeld's Company of Johnston's 3rd Regt.); received September 1, 1846 – July 1, 1847. Captain P. Edward Connor (late 1st Lt. to December 1846: wounded at Buena Vista; retired May 1847.)
  • 9th J Company Volunteers (at Monterey); October 8, 1846 – October 1847. Captain Mirabeau B. Lamar (late Division Inspector to Major Geneneral Henderson).
  • 10th I Company Volunteers; October 1846 – October 1847. Captain Shaply P. Ross.
  • 11th Mounted Company of Spies; January 31 – July 31, 1847. Captain Ben McCulloch (Major in the Staff).

Virginia

• Regiment of Virginia Volunteers, for during the war with Mexico, (14 companies); December 1846 and January 1847 – August 1848. Colonel John Francis Hamtramck (former 2nd Lieutenant, 3rd U.S. Artillery Regiment).

Misc. Volunteers

• Battalion of "Sante Fe" Mounted Volunteers, for during the war with Mexico, (4 companies); July and August 1847 – October 20, 1848. Major Robert Walker (late Adjutant of Price's Regt. Missouri Volunteers).

U.S. Navy

• Battalion of Sailors, from the fleet on the Pacific coast, organized by Commodore Robert F. Stockton
  Robert F. Stockton
  Robert Field Stockton was a United States naval commodore, notable in the capture of California during the Mexican-American War. He was a naval innovator and an early advocate for a propeller-driven, steam-powered navy. Stockton was from a notable political family and also served as a U.S...
  
  , for the recapture of Los Angeles
  Los Ángeles
  Los Ángeles is the capital of the province of Biobío, in the commune of the same name, in Region VIII , in the center-south of Chile. It is located between the Laja and Biobío rivers. The population is 123,445 inhabitants...
  
  , California, January 1847. Major, Stephen C. Rowan (Lieutenant U.S. Navy).
  • Artillery Company. Captain Richard L. Tilghman (Lieutenant)
  • A Company. Captain. John Guest (Acting master).
  • B Company. Captain. William B. Renshaw (Lieutenant)
  • C Company. Captain. Benjamin F. B. Hunter (Acting Lieutenant)
  • D Company. Captain. Edward Higgins (Acting Lieutenant)
  • E Company. Captain. J. Fenwick Stenson (Acting Lieutenant)
  • F Company. Captain James M. Duncan (Passed Midshipman)
  • G Company. Captain John Peed (Sailmaker).
  • Sappers and Miners. Captain John Southwick (Carpenter).