At the age of sixteen, he joined the infantry of the Confederate States Army and served until the end of the American Civil War eventually becoming an officer in the 16th Virginia Cavalry Regiment.After graduating college, Harris taught school for two years, studied law, and gained admittance to the state bar.[3][4][5] The founding of the Georgia School of Technology I regard as the most important event, of a public nature, that occurred in my life.The bill called for Governor Henry Dickerson McDaniel to appoint a five-member commission to select the location of the new school and organize it.Harris died at his summer home in Hampton, Tennessee on September 21, 1929[4] and was buried in Rose Hill Cemetery in Macon.