3rd Regiment Illinois Volunteer Cavalry The 3rd Regiment Illinois Volunteer Cavalry was a cavalry regiment that served in the Union Army during the American Civil War . It fought at such battles as Pea Ridge , Sherman ' s Yazoo Campaign , The Battle of Port Gibson , and the Siege of Vicksburg . Service . Source : http : / / www . civilwar . nps . gov / cwss / regiments . cfm Organized at Camp Butler , Ill . , and mustered in August 27 , 1861 . Moved to St . Louis , Mo . , September 25 , thence to Jefferson City , Mo . , and to Warsaw , Mo . , October 1 – 11 . Attached to Dept . of the Missouri to January , 1862 . 3rd Brigade , Army of Southwest Missouri , to February , 1862 . 2nd Brigade , 4th Division , Army of Southwest Missouri , to May , 1862 . 2nd Division , Army of Southwest Missouri , to July , 1862 . District of Eastern Arkansas , Dept . of Missouri , to December , 1862 . 3rd Brigade , Cavalry Division , District of Eastern Arkansas , December , 1862 . Unattached , Sherman ' s Yazoo Expedition , to January , 1863 ( Cos . " A , " " E , " " G , " " K , " " L " and " M " ) . Unattached , 13th Army Corps , Army of the Tennessee , Headquarters of Gen . McClernand and Gen . Osterhaus , to August , 1863 . ( 5 Cos . , " B , " " C , " " F , " " H " and " I , " 2nd Brigade , 1st Cavalry Division , 16th Army Corps , March to June , 1863 . 1st Brigade , 1st Division Cavalry , 16th Army Corps , to August , 1863 , 2nd Brigade , 1st Cavalry Division , 16th Army Corps , to January , 1864 . ) ( Co . " D " at Headquarters 15th Army Corps to July , 1863 , then with Arkansas Expedition to December , 1863 . ) Other Companies attached to Cavalry Brigade , 13th Army Corps , Dept . of the Gulf , to September , 1863 . 2nd Brigade , Cavalry Division , Dept . of the Gulf , to December , 1863 , when rejoined Regiment in 1st Brigade , 1st Cavalry Division , 16th Army Corps , to April , 1864 . 3rd Brigade , 1st Cavalry Division , 16th Army Corps , to June , 1864 . 1st Brigade , Cavalry Division , District of West Tennessee , to July , 1864 . 1st Brigade , 1st Cavalry Division , District of West Tennessee , to November , 1864 . 1st Brigade , 5th Division , Cavalry Corps , Military Division Mississippi , to May , 1865 . Dept . of the Northwest to October , 1865 . SERVICE . - Fremont ' s Campaign against Springfield , Mo . , October 23 - November 2 , 1861 . Moved to Rolla November 13 – 19 , and duty there till January , 1862 . Curtis ' advance on Springfield February 2 – 13 . Marshfield , Mo . , February 9 . Pursuit of Price into Arkansas February 14 – 29 . Pott ' s Hill , Sugar Creek , February 16 . Sugar Creek February 17 . Bentonville February 17 . Battles of Pea Ridge March 6 – 8 . Expedition to Fayetteville March 15 . March to Batesville , Ark . , April 5 - May 3 . Talbot ' s Ferry , White River , April 19 . Fairview , Little Red River , June 7 ( Co . " L " ) . Scouts from Batesville June 16 – 17 . March to Helena , Ark . , June 26 - July 14 . Helena July 14 . Duty near Helena , Ark . , till December . Expedition from Helena to Arkansas Post November 16 – 21 . Expedition to Grenada , Miss . , November 27 - December 5 . Oakland December 3 . Sherman ' s Yazoo Expedition December 22 , 1862 , to January 3 , 1863 . Chickasaw Bayou December 26 – 28 . Chickasaw Bluff December 29 . Expedition to Arkansas Post , Ark . , January 3 – 11 , 1863 . Capture of Fort Hindman , Arkansas Post , January 10 – 11 . Milliken ' s Bend January 21 . Richmond January 29 . 5 Companies , " B , " " C , " " F , " " H , " and " I , " ordered to Memphis , Tenn . , February , 1863 . Other Companies remained on duty with 13th Army Corps to August , 1863 . Company " D " with 1st Division , 15th Army Corps , to July , then with Arkansas Expedition till December , 1863 . Companies " A , " " E , " " G , " " K , " " L " and " M " - Operations from Milliken ' s Bend to New Carthage March 31 - April 17 , 1863 ( Cos . " A " and " K " ) . Near New Carthage April 5 ( Cos . " A " and " K " ) . Movement on Bruinsburg and turning Grand Gulf April 25 – 30 . Battle of Port Gibson May 1 . Near Black River May 5 ( Detachment ) . Battle of Champion ' s Hill May 16 . Big Black River Bridge May 17 . Siege of Vicksburg May 18 - July 4 . Assaults on Vicksburg May 19 and 22 . Edwards ' Station June 10 . Advance on Jackson , Miss . , July 4 – 10 . Edwards ' Station July 6 . Near Baker ' s Creek July 7 . Bolton ' s Depot July 8 . Near Clinton July 8 . Near Jackson July 9 . Siege of Jackson July 10 – 17 . Brookhaven July 18 . Moved to New Orleans , La . , August . Campaign in Western Louisiana , operations in Teche Country October 3 - November 30 . Vermillion Bayou October 9 – 10 . 0pelousas and Barre Landing October 21 . Washington October 24 . Vermillionville November 5 . Carrion Crow Bayou November 11 . Vermillionville November 11 . Camp Pratt November 20 and 25 . Vermillionville November 25 . Near Baton Rouge March 3 , 1864 ( Detachment ) . Jackson March 3 , 1864 ( Detachment ) . Livonia March 30 . Near Port Hudson April 7 ( Detachment ) . Companies rejoined Regiment at Memphis , Tenn . , December , 1863 . Companies " B , " " C , " " F , " " H " and " I " - Coldwater and Cochran ' s Cross Roads May 15 , 1863 . Expedition from LaGrange , Tenn . , to Senatobia , Miss . , May 21 – 26 . Senatobia May 23 . Operations in Northwest Mississippi June 15 – 25 . Scout to Germantown July 8 . Mt . Pleasant August 5 . Expedition from Memphis to Grenada , Miss . , August 12 – 23 . Grenada August 17 . Mt . Pleasant August 25 . Expedition from LaGrange to Toon ' s Station September 11 – 16 . Montezuma September 16 . Operations against Chalmers ' in North Mississippi and West Tennessee October 4 – 17 . Lockhart ' s Mills October 6 . Salem October 8 . Ingraham ' s Mills , near Byhalia , October 12 . Wyatts ' , Tallahatchie River , October 13 . Operations on Memphis and Charleston R . R . November 3 – 5 . Operations on Memphis and Charleston R . R . against Lee ' s attack November 28 - December 10 . Ripley December 1 . Near Moscow December 3 – 4 . Near Corinth Dec . 23 ( Detachment ) . Company " D . " - Expedltion to Greenville , Black Bayou and Deer Creek April 2 – 14 , 1863 . Jackson , Miss . , May 14 . Siege of Vicksburg May 18 - July 4 . Assaults on Vicksburg May 19 and 22 . Advance on Jackson , Miss . , July 4 – 10 . Siege of Jackson July 10 – 17 . Moved to Helena , Ark . , July . Steele ' s Expedition to Little Rock , Ark . , August 1 - September 10 . Bayou Fourche and capture of Little Rock September 10 . Regiment on Smith ' s Expedition from Colliersvllle , Tenn . , to Okolona , Miss . , February 11 – 26 , 1864 . Holly Springs , Miss . , February 12 . Near Pontotoc February 17 . Houlka Swamp , near Houston , February 17 . Near Okolona February 18 . Ivey ' s Hill , near Okolona , February 22 . New Albany February 23 . Pontotoc February 24 . Germantown May 9 . Sturgis ' Expedition from Memphis into Mississippi June 1 – 13 . Brice ' s or Tishaming Creek , near Guntown , June 10 . Ripley June 11 . Near Holly Springs July 1 . Smith ' s Expedition to Tupelo , Miss . , July 5 – 21 . Camargo ' s Cross Roads , near Harrisburg , July 13 . Near Tupelo July 14 – 15 . Old Town Creek July 15 . Smith ' s Expedition to Oxford , Miss . , August 1 – 30 . Tallahatchie River August 7 – 9 . Hurricane Creek and Oxford August 9 . Hurricane Creek August 13 – 14 and 19 . Forest ' s attack on Memphis , Tenn . , August 21 ( Detachment ) . Scout to Mayfield , Ky . , and skirmish August 14 – 15 ( Detachment ) . Moved to Clifton , Tenn . , September 27 . Operations in Tennessee and Alabama against Hood November – December . Expedition from Memphis to Moscow November 9 – 13 . Shoal Creek , Ala . , November 11 . On line of Shoal Creek November 16 – 20 . Duck River November 28 . Franklin November 30 . Battle of Nashville December 15 – 16 . Pursuit of Hood December 17 – 28 . West Harpeth River December 17 . Richland Creek December 24 . King ' s or Anthony ' s Gap , near Pulaski , December 25 . At Gravelly Springs , Ala . , till February , 1865 . At Eastport , Miss . , till May . Moved to St . Louis , Mo . , thence to St . Paul , Minn . Operating against Indians in Minnesota and Dakota July 4 to October 1 . Mustered out October 18 , 1865 . Total strength and casualties . The regiment suffered 8 officers and 50 enlisted men who were killed in action or who died of their wounds and 3 officers and 173 enlisted men who died of disease , for a total of 234 fatalities . See also summary of casualties at