Dee ihe na-aga n'ihu maka paragraf a - N'ime afọ abụọ mbụ ya, ndị 70th Indiana rụrụ ọrụ nyocha ma chebe ụzọ ụgbọ okporo ígwè na Kentucky na Tennessee. N'afọ 1864, Harrison na ndị agha ya sonyeere William T. Sherman Atlanta Campaign ma kwaga n'ihu agha. Na Jenụwarị 2, 1864, a kwalitere Harrison ka ọ bụrụ onye isi nke 1st Brigade nke 1st Division nke XX Corps. Ọ bụ ya bụ onyeisi ndị agha n'agha Resaca
, Cassville, New Hope Church, Lost Mountain, Kennesaw Mountain, Marietta, Peachtree Creek, na Atlanta. Mgbe isi ike Sherman malitere njem ya n'Oké Osimiri, a kpọfere ndị agha Harrison na mpaghara Etowah ma sonye na Agha Nashville.