On January 23, 1865, Lincoln nominated Harrison to the grade of brevet brigadier general of volunteers, to rank from that date, and the Senate confirmed the nomination on February 14, 1865. He rode in the Grand Review in Washington, D.C. before mustering out on June 8, 1865. Gen., USVUnitArmy of the CumberlandCommands70th Ind. Infantry Reg.1st Brigade, 1st Division, XX CorpsBattles/warsAmerican Civil War. 4.1 Indiana politics.