46thIndiana Infantry Regiment The 46th Regiment Indiana Infantry was an infantry regiment that served in the Union Army during the American Civil War . Service . The 46th Indiana Infantry was organized at Logansport , Indiana and mustered in for a three year enlistment on December 11 , 1861 under the command of Colonel Graham Newell Fitch . The regiment was attached to 19th Brigade , Army of the Ohio , January 1862 . 19th Brigade , 4th Division , Army of the Ohio , to February 1862 . 1st Brigade , 2nd Division , Army of the Mississippi , to April 1862 . 2nd Brigade , 3rd Division , Army of the Mississippi , to July 1862 . Helena , Arkansas , District of Eastern Arkansas , Department of the Missouri , to December 1862 . 1st Brigade , 2nd Division , District of Eastern Arkansas , Department of the Tennessee , to January 1863 . 1st Brigade , 12th Division , XIII Corps , Army of the Tennessee , to February 1863 . 1st Brigade , 13th Division , XIII Corps , to March 1863 . 1st Brigade , 12th Division , XIII Corps , to July 1863 . 1st Brigade , 3rd Division , XIII Corps , Army of the Tennessee , to August 1863 , and Department of the Gulf to July 1864 . 4th Brigade , 1st Division , District of Kentucky , Department of the Ohio , to December 1864 . Garrison , Lexington , Kentucky , District of Kentucky , Department of the Ohio , to February 1865 , and Department of Kentucky to September 1865 . The 46th Indiana Infantry mustered out of service September 4 , 1865 at Louisville , Kentucky . Detailed service . Ordered to Kentucky and duty at Camp Wickliffe until February 1862 . Ordered to Commerce , Mo . , February 16 , 1862 . Siege of New Madrid , Mo . , March 5 – 14 . Siege and capture of Island No . 10 , Mississippi River , March 15 - April 8 . Expedition to Fort Pillow , Tenn . , April 13 – 17 . Operations against Fort Pillow April 17 - June 5 . Capture of Fort Pillow June 5 . Occupation of Memphis , Tenn . , June 6 . Expedition up White River , Ark . , June 10 - July 14 . St . Charles June 17 . Grand Prairie July 6 – 7 . Duvall ' s Bluff July 7 . Duty at Helena , Ark . , until April 1863 . Expedition to Arkansas Post November 16 – 22 , 1862 . Expedition to Yazoo Pass by Moon Lake , Yazoo Pass and Coldwater and Tallahatchie Rivers February 24 - April 5 . Operations against Fort Pemberton and Greenwood March 11 - April 5 . Fort Pemberton March 11 . Moved to Milliken ' s Bend , La . , April 12 . Movement on Bruinsburg and turning Grand Gulf April 25 – 30 . Battle of Port Gibson , Miss . , May 1 – 14 . Mile Creek April 12 – 13 . Battle of Champion Hill May 16 . Siege of Vicksburg May 18 - July 4 . Assaults on Vicksburg May 19 and 22 . Advance on Jackson July 4 – 10 . Near Jackson July 9 . Siege of Jackson July 10 – 17 . Ordered to New Orleans , La . , August 10 . Duty at Carrollton , Brashear City , and Berwick until October . Western Louisiana " Teche " Campaign October 3 - November 30 . Grand Coteau November 3 . Moved to New Orleans , La . , December 17 . Regiment reenlisted January 2 , 1864 . Red River Campaign March 10 - May 22 . Advance from Franklin to Alexandria March 14 – 26 . Battle of Sabine Cross Roads April 8 . Monett ' s Ferry , Cane River Crossing . April 23 . Alexandria April 30 - May 10 . Graham ' s Plantation May 6 . Retreat to Morganza May 13 – 20 . Mansura May 16 . Expedition to the Atchafalaya May 30 - June 5 . Moved to New Orleans , La . , then home on veteran furlough June 12 . Expedition down the Ohio River toward Shawneetown , Ill . , to suppress insurrection , and from Mt . Vernon , Ind . , into Kentucky against Confederate recruiting parties August 16 – 22 . White Oak Springs August 17 . Gouger ' s Lake August 18 . Smith ' s Mills August 19 . Moved to Lexington , Ky . , to resist Buckner ' s invasion of Kentucky . Burbridge ' s Expedition to Saltsville , Va . , September 17 - October 19 . Garrison , Prestonburg , and Catlettsburg , Ky . , during the expedition . Return to Lexington and garrison duty there until September 1865 . Moved to Louisville , Ky . . Casualties . The regiment lost a total of 264 men during service ; 4 officers and 66 enlisted men killed or mortally wounded , 3 officers and 191 enlisted men died of disease .