99th Ohio Infantry The 99th Ohio Volunteer Infantry ( or 99th OVI ) was an infantry regiment in the Union Army during the American Civil War . Service . The 99th Ohio Infantry was organized at Camp Lima in Allen County , Ohio and mustered in for three years service on August 26 , 1862 under the command of Colonel Albert Longworthy . The regiment was recruited in Allen , Auglaize , Hancock , Mercer , Putnam , Shelby , and Van Wert counties . The regiment was attached to 23rd Brigade , 5th Division , Army of the Ohio , September 1862 . 23rd Brigade , 5th Division , II Corps , Army of the Ohio , to November 1862 . 3rd Brigade , 3rd Division , Left Wing , XIV Corps , Army of the Cumberland , to January 1863 . 3rd Brigade , 3rd Division , XXI Corps , Army of the Cumberland , to October 1863 . 2nd Brigade , 1st Division , IV Corps , Army of the Cumberland , to June 1864 . 2nd Brigade , 1st Division , XXIII Corps , Army of the Ohio , June 1864 . 4th Brigade , 2nd Division , XXIII Corps , to August 1864 . 1st Brigade , 2nd Division , XXIII Corps , to December 1864 . The 99th Ohio Infantry ceased to exist on December 31 , 1864 when it was consolidated with the 50th Ohio Infantry . Detailed service . Ordered to Lexington , Ky . , August 31 , thence moved to Cynthiana , Ky . , September 3 , thence to Covington , Ky . , and to Louisville , Ky . , September 17 . Pursuit of Bragg into Kentucky October 1 – 15 . Battle of Perryville , Ky . , October 8 ( reserve ) . March to Nashville , Tenn . , October 16 - November 7 , and duty there until December 26 . Advance on Murfreesboro , Tenn . , December 26 – 30 . Battle of Stones River December 30 – 31 , 1862 and January 1 – 3 , 1863 . Duty at Murfreesboro until June . Tullahoma Campaign June 23 - July 7 . March to McMinnville , and duty there until August 16 . Passage of the Cumberland Mountains and Tennessee River and Chickamauga Campaign August 16 - September 22 . Battle of Chickamauga September 19 – 20 . Siege of Chattanooga September 24 - November 23 . Reopening Tennessee River October 26 – 29 . Chattanooga - Ringgold Campaign November 23 – 27 . Orchard Knob November 23 . Lookout Mountain November 23 – 24 . Missionary Ridge November 25 . Pigeon Hills November 26 . Ringgold Gap , Taylor ' s Ridge , November 27 . Camp at Shellmound until February , 1864 . Demonstration on Dalton , Ga . , February 22 – 27 . Tunnel Hill , Buzzard ' s Roost Gap , and Rocky Faced Ridge February 23 – 25 . At Cleveland until May . Atlanta Campaign May 1 - September 8 . Tunnel Hill May 6 – 7 . Demonstration on Rocky Raced Ridge May 8 – 11 . Buzzard ' s Roost Gap May 8 – 9 . Demonstrations on Dalton May 9 – 13 . Battle of Resaca May 14 – 15 . Near Kingston May 18 – 19 . Near Cassville May 19 . Advance on Dallas May 22 – 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 . Pine Hill June 11 – 14 . Lost Mountain June 15 – 17 . Muddy Creek June 17 . Noyes Creek June 19 . Kolb ' s Farm June 22 . Assault on Kennesaw June 27 . Nickajack Creek July 2 – 5 . Ruff ' s Mills July 3 – 4 . Chattahoochie River July 5 – 17 . Decatur July 19 . Siege of Atlanta July 22 - August 25 . Utoy Creek August 5 – 7 . Flank movement on Jonesboro August 25 – 30 . Battle of Jonesboro August 31 - September 1 . Lovejoy ' s Station September 2 – 6 . Pursuit of Hood into Alabama October 3 – 26 . Nashville Campaign November – December . Columbia , Duck River , November 24 – 27 . Battle of Franklin November 30 . Battle of Nashville December 15 – 16 . Pursuit of Hood to the Tennessee River December 17 – 28 . Casualties . The regiment lost a total of 342 men during service ; 4 officers and 80 enlisted men killed or mortally wounded , 2 officers and 256 enlisted men died of disease .