Horne had a successful career at the Union Protective Life Insurance Company, holding senior positions in the company. An active civic and commercial leader, Horne held directorships on many boards and societies and was even named Man of the Year of the Memphis Junior Chamber of Commerce. He also owned and managed a nightclub, The Living Room, were he performed in the house jazz band, The Maestros. Alongside his business career, Horne was a music teacher and band director at several high schools where he trained musicians such as Hank Crawford, Phineas Newborn Jr and Charles Lloyd.
