 Beatty led a brigade in the IV Corps of the Army of the Cumberland during the Atlanta Campaign.By nomination of President Andrew Johnson on January 13, 1866 and confirmation by the U.S. Senate on March 12, 1866, he was retroactively awarded the brevet grade of major general of volunteers, to rank from March 13, 1865, for his actions at the Battle of Nashville, leading the division of Brig.Gen.