Harold was born on October 17, 1920 in Charles City, Iowa to Henry and Mary Vogt Horn. He was raised in Charles City and graduated from Charles City High School with the Class of 1938. He served with the U.S. Army during World War II in New Guinea and the Philippines. On August 16, 1940 he was married to Elizabeth Lofy in Mason City. The couple moved to Conrady, Iowa and he worked in the flooring business. In 1963 he moved to Grinnell and worked in the buildings and grounds department of Grinnell College. Prior to his retirement in 1984 he served as Director of Maintenance at Grinnell College. He is survived by two sons, Phillip Horn of Austin, Texas and Terry Horn of Des Moines; one daughter, Virginia Cortez of Lakewood, Colorado; eight grandchildren; fourteen great grandchildren; and one sister, Iva Volbrecht of Wichita, Kansas. He was preceded in death by his wife; his parents; one brother; and three sisters.