Dr. Reid also paid for Harris' school tuition for several years. In 1856, Joe Harris briefly attended Kate Davidson's School for Boys and Girls, but transferred to Eatonton School for Boys later that year. He had an undistinguished academic record and a habit of truancy. Harris excelled in reading and writing, but was mostly known for his pranks, mischief, and sense of humor. Practical jokes helped Harris cloak his shyness and insecurities about his red hair, Irish ancestry, and illegitimacy, leading to both trouble and a reputation as a leader among the older boys.