Harold was born on August 3, 1916, in Grinnell, Iowa to Vernon and Ida Grace Grovenburg Miller. He was raised in Grinnell and attended Grinnell schools. Following his education he worked for the Grinnell Shoe Company. During World War II he served with the United States Army in the European Theatre. On November 10, 1937, he was married to Ruth Burch in Unionville, Missouri. The couple lived in Grinnell and he was employed at McGregor's Furniture Store and operated a home photography business. Later, he was trained as a pilot and worked at the Grinnell Airport and Grinnell Mutual Reinsurance Company. In 1960, the family moved to Marshalltown and he became employed as a pilot for Niederhauser Aviation and flew for Fisher Governor. He later returned to Grinnell Mutual as a pilot. The couple moved to the Mayflower Community in 2010. Harold enjoyed woodworking, reading, yard work, playing his guitar and singing country western music. He loved to fly and logged over 29,000 hours of flight time. His passion in life was his love of his family. He enjoyed watching his grandsons compete in their sporting events and spending time with his great grandchildren. Survivors include his wife, Ruth Miller of Grinnell; one daughter, Pat (Robert) Strawser of Grinnell; three grandsons, Steve (Michelle) Strawser of Des Moines, Mark (Anne) Strawser of Bettendorf and Curt (Tammy) Strawser of Grinnell; nine great grandchildren, Alyssa, Cassandra, Jordan, Payton, Sydney, Grace, Zane, Logan and Ty; two brothers, Don Miller of Tinley Park, Illinois and Gene Miller of Victor, Iowa; and two sisters, Verna Taylor of Tama and Audrey Tyer of Polk City. He was preceded in death by his parents and seven brothers, Walt, Harry, Adrian, Raymond, Glenn, Dick and Gerald Miller; and one great granddaughter, Samantha. Should friends desire memorials may be directed to Grinnell Regional Hospice or to the Human Needs fund of the Mayflower Community.