Colonel Harrison had the right of the brigade, and his command was occupied at first in guarding railroads and hunting guerrillas, his energies being largely spent in drilling his men.  When General Rosecrans set out for Chattanooga General Ward was sent on duty to Nashville, and on January 2, 1864, his command was called to the front.  Later this brigade became the First Brigade of the Third Division of the Twentieth Army Corps, under General Hooker, General Ward resuming its command.  The campaign under General Sherman, upon which his regiment with its associate forces entered, was directed, as is now known, against the Confederate army of General Joseph E. Johnston, and not against any particular place.  In the Federal advance one of the severest actions was fought at Resaca, Ga., May 14 and 15, 1864, and the Seventieth Indiana led the assault.  His regiment participated in the fights at New Hope Church and at Golgotha Church, Kenesaw Mountain, and Peach Tree Creek.  When Atlanta was taken by Sherman, September 2, 1864, Colonel Harrison received his first furlough to visit home, being assigned to special duty in a canvass of the State to recruit for the forces in the field.  Returning to Chattanooga and then to Nashville, he was placed in command of a provisional brigade held in reserve at the battle at the latter place (December 15 and 16, 1864), and was but little engaged.  When the fight was over he was sent in pursuit of the Confederate general Hood.  Recalled from that pursuit, was next ordered to report to General Sherman at Savannah.  While passing through New York he succumbed to an attack of scarlet fever, but in a few weeks was able to proceed on his way.  Joining Sherman at Goldsboro, N.C., resumed command of his old brigade, and at the close of the war went with it to Washington to take part in the grand review of the armies.  Was duly mustered out of the service June 8, 1865, not, however, until he had received a commission as brevet brigadier-general, dated January 23, 1865.  Returning to Indianapolis after the war, resumed his office of reporter of the supreme court, but in 1867 declined a renomination, preferring to devote himself exclusively to the practice of law.  Became a member of the firm of Porter, Harrison & Fishback, and, after subsequent changes, of that of Harrison, Miller & Elam.  Took part in 1868 and 1872 in the Presidential campaigns in support of General Grant, traveling over Indiana and speaking to large audiences.  In 1876 at first declined a nomination for governor on the Republican ticket, consenting to run only after the regular nominee had withdrawn.  In this contest he received almost 2,000 more votes than his associates, but was defeated.  Was a member of the Mississippi River Commission in 1879.  In 1880, as chairman of the Indiana delegation in the Republican national convention, he cast nearly the entire vote of the State for James A. Garfield for President.  President Garfield offered him a place in his Cabinet, but he declined it, preferring