The 70th Indiana Infantry was organized at
Indianapolis, Indiana July 22 through August 8, 1862, and mustered in for a three-year enlistment under the command of
Colonel Benjamin Harrison. The regiment was attached to District of Louisville, Kentucky, Department of the Ohio, to November 1862. Ward's Brigade, Dumont's 12th Division,
Army of the Cumberland, to December 1862. Ward's Brigade, Post of Gallatin, Tennessee, Department of the Cumberland, to June 1863. 2nd Brigade, 3rd Division Reserve Corps, Department of the Cumberland, to October 1863. Ward's Brigade, Post and District of Nashville, Tennessee, Department of the Cumberland, to January 1864. 1st Brigade, 1st Division,
XI Corps, Army of the Cumberland, to April 1864. 1st Brigade, 3rd Division,
XX Corps, Army of the Cumberland, to June 1865. Veterans and recruits from the
27th Indiana Infantry were transferred to the 70th Indiana Infantry on November 4, 1864, when the 27th Indiana Infantry was mustered out of service. The 70th Indiana Infantry mustered out of service at
Washington, D.C., on June 9, 1865. Recruits were transferred to the
33rd Indiana Infantry. ==Detailed service==