3rd Ohio Infantry The 3rd Regiment , Ohio Volunteer Infantry ( or 3rd OVI ) was an infantry regiment in the Union Army during the American Civil War . It served in several important campaigns in the Western Theater in Kentucky , Tennessee , and Alabama . Three - months regiment . With the outbreak of the Civil War , President Abraham Lincoln called for 75 , 000 volunteers to help put down the rebellion . Ohioans responded well , and several new regiments were enrolled for a term of three months , thought to be long enough to end the war . The 4th Ohio was organized at Camp Jackson in Columbus on April 25 , 1861 , under Isaac Morrow , Colonel , John Beatty , Lieut . Colonel , and J . Warren Keifer , Major . The regiment moved to newly constructed Camp Dennison near Cincinnati on April 28 , and served on garrison duty there until June 12 , at which time many of the men joined the newly reorganized a three - years ' regiment with the same numerical designation . Those three months ' men who elected not to join the three - years ' regiment were mustered out on July 24 . Three - years regiment . Early service . The three - years 3rd OVI was organized at Camp Dennison on June 12 , 1861 . After a few days of training and drilling , it moved to Grafton , Virginia ( now West Virginia ) and then on to Clarksburg on June 20 – 25 , where it was attached to the 1st Brigade , Army of Occupation , West Virginia , until September . The regiment saw action in the West Virginia Campaign , capturing the Confederate - held town of Beverly on July 12 . They remained on duty in western Virginia through the balance of the year , fighting in several small skirmishes and battles , including the battles of Rich Mountain and Cheat Mountain . In October , the 3rd OVI was shipped to Louisville , Kentucky , and served for the rest of the war in the Western Theater . After wintering near Elizabethtown , Kentucky , the regiment , then in the army of Ormsby Mitchel , was part of the general advance on Confederate - held Nashville , Tennessee , in February 1863 . After occupying the city , the 9th moved toward Murfreesboro , Tennessee , in March . It took part in the Tullahoma Campaign and assisted in capturing the city of Huntsville , Alabama , on April 11 . The 3rd Ohio remained in Alabama until late August when it was part of the Union forces that pursued Braxton Bragg ' s Confederate army during the Kentucky Campaign . On October 8 , 1862 , the 3rd Ohio was heavily involved at the Battle of Perryville . Two weeks later , it marched back to Murfreesboro and remained there through the winter , participating in the Battle of Stones River at year ' s end . In April 1863 , the regiment was part of Streight ' s Raid to Rome , Georgia from April 26 until May 3 . It was involved in fights at Day ' s Gap , Sand Mountain , and Crooked Creek and Hog Mountain . Much of the regiment was captured on May 3 near Rome and taken as prisoners of war . The officers and men were sent to Belle Isle and Libby Prison . The captives were exchanged later that month and sent northward to Camp Chase in Columbus , Ohio , to reorganize . In June , the 3rd Ohio helped quell the Holmes County Rebellion , and a month later was involved in the pursuit of Morgan ' s Raid ers . On August 1 , the 3rd OVI was transported to Nashville and then on to Bridgeport , Alabama , where it was on guard duty until October . Then , it was part of the Union expedition against Confederates under Nathan Bedford Forrest . On November 27 , the regiment was sent to the rear lines to perform garrison duty at Chattanooga , Tennessee , until June 1864 . It was then ordered back to Camp Dennison on June 9 , where it mustered out June 23 , 1864 . During its term of service , the 3rd Ohio lost 4 officers and 87 enlisted men killed and mortally wounded , and 3 officers and 78 enlisted men by disease , for a total of 172 fatalities .