Adolphus Origen Mitchell was born in Indiana around 1840. In 1863 he was a resident of Abington in Wayne County, Indiana at the time of his enlistment in the Union Army. He was immediately mustered into Company C of the Thirteenth Indiana Infantry Regiment. He later transferred to Company K of that regiment and mustered out of the military in September 1865 at Goldsboro, North Carolina. After the war he married Mollie J. Arnold and resided in Mooresville, in Morgan County, Indiana.
From the description of Collection, 1862-1917 (Indiana Historical Society Library). WorldCat record id: 60629385