Mr. Olsen was an architect and retired from FGM Architects. He was a former fighter pilot for the United States Air Force.
He was preceded in death by his parents, Joseph and Esther, nee Rowland, Olsen; a sister, Betty Jane Reeves; and a brother, Joseph Olsen.
He is survived by his wife of 63 years, Barbara, nee Hesse, Olsen, whom he married on February 21, 1959; three children, Jami, Kirk, and Greg (Maria); five grandchildren, Jacquelin, Saeger (Makaila), Matthew (Gabrielle), Anna (Sheldon), and Melissa; and three great-grandchildren, Kreed, Kash, and Aurelia.
Memorials may be made to St. Paul United Church of Christ, Belleville, IL, or Tunnels to Towers Foundation, 2361 Hylan Blvd, Staten Island, NY, 10306. Condolences may be expressed to the family online at www.rennerfh.com.
Funeral: A memorial service will be held at 11 a.m. Saturday, October 22, 2022, at St. Paul United Church of Christ, Belleville, IL.
Burial with full military honors will be at Jefferson Barracks National Cemetery, St. Louis, MO, at a later date.