William Marsh "Bill" Bower (February 13, 1917 – January 10, 2011) was an American aviator, U.S. Air Force Colonel and veteran of World War II. Bower was the last surviving pilot of the Doolittle Raid, the first air raid to target the Japanese Home Island of Honshu. A native of Ravenna, Ohio, Bower graduated from Ravenna High School in 1934. He attended both Hiram College and Kent State University from 1934 until 1936. Bower then joined the Ohio National Guard 107th Cavalry, based in Ravenna, from 1936 to 1938.