During World War II, Tom served as a diplomatic courier for the Department of State in South America, Europe, and North Africa. He joined Kanawha Steel & Equipment Co., which had been founded by his parents, eventually succeeding his father as president. He was a member of the Rotary Club, Edgewood Country Club, Sea Pines Country Club, Farmington Country Club, and St. Matthew’s Episcopal Church.
Tom died June 4, 2017. He was predeceased by his two sons, Thomas III and John. He is survived by his wife, Anna Andersen Buck Horn; daughters Mary Preston Yates and Hollister Ann Horn; and grandsons Alex Yates IV, Preston Yates, John Buckland Horn II, and James Dillon Horn.