81st Ohio Infantry The 81st Ohio Volunteer Infantry ( or 81st OVI ) was an infantry regiment in the Union Army during the American Civil War . Service . The 81st Ohio Infantry was originally organized as " Morton ' s Independent Rifle Regiment " and mustered in for three years service under the command of Colonel Thomas Morton . The regiment was attached to Department of Missouri , to March 1862 . 2nd Brigade , 2nd Division , Army of the Tennessee , to July 1862 . 2nd Brigade , 2nd Division , District of Corinth , Mississippi , to September 1862 . 1st Brigade , 2nd Division , District of Corinth , Mississippi , to November 1862 . 2nd Brigade , District of Corinth , Mississippi , XIII Corps , Department of the Tennessee , to December 1862 . 2nd Brigade , District of Corinth , XVII Corps , to January 1863 . 2nd Brigade , District of Corinth , XVI Corps , to March 1863 . 2nd Brigade , 2nd Division , XVI Corps , to September 1864 . 2nd Brigade , 4th Division , XV Corps , to July 1865 . The 81st Ohio Infantry mustered out of service at Louisville , Kentucky on July 13 , 1865 . Detailed service . Duty at Benton Barracks , Mo . , until September 24 , 1861 . Moved to Franklin , Mo . , September 24 , then to Harman , Mo . , September 27 , and duty there until December 20 . Expedition to Fulton , Calloway County , Mo . , November 1861 . Expedition after guerrillas in northern Missouri December 20 , 1861 to January 4 , 1862 . Duty along Northern Missouri Railroad at Wellsville , Montgomery City , and Danville ( headquarters at Danville ) until March 1 , 1862 . Moved to St . Louis , Mo . , then to Pittsburg Landing , Tenn . , March 1 – 15 , 1862 . Battle of Shiloh , April 6 – 7 . Advance on and siege of Corinth , Miss . , April 29 - May 30 . Pursuit to Booneville June 1 – 14 . Duty at Corinth until August . Guard stores at Hamburg until September 17 . Movements on Iuka , Miss . , September 17 – 20 . Battle of Corinth October 3 – 4 . Pursuit to Ripley October 5 – 12 . Five companies joined the regiment October 19 . Duty at Corinth until April 1863 . Raid to Tupelo , Miss . , December 13 – 19 , 1862 and January 3 – 19 , 1863 . Raid to intercept Forrest January 2 – 3 . Cornersville Pike January 28 ( detachment ) . Dodge ' s Expedition to northern Alabama April 15 - May 8 . Great Bear Creek April 17 . Rock Cut , near Tuscumbia , April 22 . Tuscumbia April 23 . Town Creek April 28 . Moved to Pocahontas June 3 , and duty there until October 29 . March to Pulaski October 29 - November 10 . Duty at Pulaski , Wales , Sam ' s Mills , and Nancy ' s Mills ( headquarters at Pulaski ) until March 1864 . Moved to Lynnville March 5 , and to Pulaski April 19 . March to Chattanooga , Tenn . , April 29 - May 4 . Atlanta Campaign May to September . Demonstrations on Resaca May 8 – 12 . Snake Creek Gap and Sugar Valley , near Resaca , May 9 . Near Resaca May 13 . Battle of Resaca May 14 . Lay ' s Ferry , Oostenaula River , May 14 – 15 . Rome Cross Roads May 16 . Advance on Dallas May 18 – 25 . Operations on line of Pumpkin Vine Creek and battles about Dallas , New Hope Church , and Allatoona Hills May 25 - June 5 . Operations about Marietta and against Kennesaw Mountain June 10 - July 2 . Assault on Kennesaw June 27 . Nickajack Creek July 2 – 5 . Ruff ' s Mills July 3 – 4 . Chattahoochie River July 6 – 17 . Battle of Atlanta July 22 . Siege of Atlanta July 22 - August 25 . Ezra Chapel July 28 . Flank movement on Jonesboro August 25 – 30 . Battle of Jonesboro August 31 - September 1 . Lovejoy ' s Station September 2 – 6 . Non - veterans mustered out September 26 , 1864 . Garrison duty at Rome until November . Reconnaissance from Rome on Cave Springs Road and skirmishes October 12 – 13 . March to the sea November 15 - December 10 . Ogeechee Canal December 8 . Siege of Savannah December 10 – 21 . Campaign of the Carolinas January to April , 1865 . Salkehatchie Swamps , S . C . , February 2 – 5 . South Edisto River February 9 . North Edisto River February 12 – 13 . Columbia February 16 – 17 . Lynch ' s Creek February 26 . Battle of Bentonville , N . C . , March 19 – 21 . Occupation of Goldsboro March 24 . Advance on Raleigh April 10 – 14 . Occupation of Raleigh April 14 . Bennett ' s House April 26 . Surrender of Johnston and his army . March to Washington , D . C . , via Richmond , Va . , April 29 - May 20 . Grand Review of the Armies May 24 . Moved to Louisville , Ky . , June . Casualties . The regiment lost a total of 222 men during service ; 4 officers and 58 enlisted men killed or mortally wounded , 160 enlisted men died of disease .